diff --git a/core/conference.cpp b/core/conference.cpp
index 3124da5..f205702 100644
--- a/core/conference.cpp
+++ b/core/conference.cpp
@@ -132,7 +132,6 @@ void Core::Conference::onRoomParticipantAdded(const QString& p_name)
     if (resource == jid) {
         qDebug() << "Room" << jid << "is reporting of adding itself to the list participants. Not sure what to do with that yet, skipping";
     } else {
-        qDebug() << "Participant" << resource << "had entered room" << jid;
         QXmppPresence pres = room->participantPresence(jid);
         QDateTime lastInteraction = pres.lastUserInteraction();
         if (!lastInteraction.isValid()) {
diff --git a/core/squawk.cpp b/core/squawk.cpp
index fa8be41..a5d5f94 100644
--- a/core/squawk.cpp
+++ b/core/squawk.cpp
@@ -126,6 +126,13 @@ void Core::Squawk::addAccount(const QString& login, const QString& server, const
             this, SLOT(onAccountChangeRoom(const QString&, const QMap<QString, QVariant>&)));
     connect(acc, SIGNAL(removeRoom(const QString&)), this, SLOT(onAccountRemoveRoom(const QString&)));
     
+    connect(acc, SIGNAL(addRoomParticipant(const QString&, const QString&, const QMap<QString, QVariant>&)), 
+            this, SLOT(onAccountAddRoomPresence(const QString&, const QString&, const QMap<QString, QVariant>&)));
+    connect(acc, SIGNAL(changeRoomParticipant(const QString&, const QString&, const QMap<QString, QVariant>&)), 
+            this, SLOT(onAccountChangeRoomPresence(const QString&, const QString&, const QMap<QString, QVariant>&)));
+    connect(acc, SIGNAL(removeRoomParticipant(const QString&, const QString&)), 
+            this, SLOT(onAccountRemoveRoomPresence(const QString&, const QString&)));
+    
     
     QMap<QString, QVariant> map = {
         {"login", login},
diff --git a/global.h b/global.h
index 8295278..cf0151e 100644
--- a/global.h
+++ b/global.h
@@ -51,12 +51,35 @@ enum SubscriptionState {
     unknown
 };
 
+enum class Affiliation {
+    unspecified, 
+    outcast, 
+    nobody, 
+    member, 
+    admin, 
+    owner 
+};
+
+enum class Role { 
+    unspecified, 
+    nobody, 
+    visitor, 
+    participant, 
+    moderator 
+};
+
 static const Availability availabilityHighest = offline;
 static const Availability availabilityLowest = online;
 
 static const SubscriptionState subscriptionStateHighest = unknown;
 static const SubscriptionState subscriptionStateLowest = none;
 
+static const Affiliation affiliationHighest = Affiliation::owner;
+static const Affiliation affiliationLowest = Affiliation::unspecified;
+
+static const Role roleHighest = Role::moderator;
+static const Role roleLowest = Role::unspecified;
+
 static const std::deque<QString> connectionStateNames = {"Disconnected", "Connecting", "Connected", "Error"};
 static const std::deque<QString> connectionStateThemeIcons = {"state-offline", "state-sync", "state-ok", "state-error"};
 
diff --git a/main.cpp b/main.cpp
index 4c48fa0..1183137 100644
--- a/main.cpp
+++ b/main.cpp
@@ -80,7 +80,6 @@ int main(int argc, char *argv[])
                      squawk, SLOT(addContactRequest(const QString&, const QString&, const QString&, const QSet<QString>&)));
     QObject::connect(&w, SIGNAL(removeContactRequest(const QString&, const QString&)), 
                      squawk, SLOT(removeContactRequest(const QString&, const QString&)));
-    
     QObject::connect(&w, SIGNAL(setRoomJoined(const QString&, const QString&, bool)), squawk, SLOT(setRoomJoined(const QString&, const QString&, bool)));
     QObject::connect(&w, SIGNAL(setRoomAutoJoin(const QString&, const QString&, bool)), squawk, SLOT(setRoomAutoJoin(const QString&, const QString&, bool)));
     
@@ -109,6 +108,12 @@ int main(int argc, char *argv[])
     QObject::connect(squawk, SIGNAL(changeRoom(const QString&, const QString&, const QMap<QString, QVariant>&)), 
                      &w, SLOT(changeRoom(const QString&, const QString&, const QMap<QString, QVariant>&)));
     QObject::connect(squawk, SIGNAL(removeRoom(const QString&, const QString&)), &w, SLOT(removeRoom(const QString&, const QString&)));
+    QObject::connect(squawk, SIGNAL(addRoomParticipant(const QString&, const QString&, const QString&, const QMap<QString, QVariant>&)), 
+                     &w, SLOT(addRoomParticipant(const QString&, const QString&, const QString&, const QMap<QString, QVariant>&)));
+    QObject::connect(squawk, SIGNAL(changeRoomParticipant(const QString&, const QString&, const QString&, const QMap<QString, QVariant>&)), 
+                     &w, SLOT(changeRoomParticipant(const QString&, const QString&, const QString&, const QMap<QString, QVariant>&)));
+    QObject::connect(squawk, SIGNAL(removeRoomParticipant(const QString&, const QString&, const QString&)), 
+                     &w, SLOT(removeRoomParticipant(const QString&, const QString&, const QString&)));
     
     //qDebug() << QStandardPaths::writableLocation(QStandardPaths::CacheLocation);
     
diff --git a/ui/CMakeLists.txt b/ui/CMakeLists.txt
index e56d8fd..65bdec5 100644
--- a/ui/CMakeLists.txt
+++ b/ui/CMakeLists.txt
@@ -23,6 +23,7 @@ set(squawkUI_SRC
   models/group.cpp
   models/room.cpp
   models/abstractparticipant.cpp
+  models/participant.cpp
   widgets/conversation.cpp
   widgets/chat.cpp
   widgets/room.cpp
diff --git a/ui/models/abstractparticipant.cpp b/ui/models/abstractparticipant.cpp
index 6563807..7fef30a 100644
--- a/ui/models/abstractparticipant.cpp
+++ b/ui/models/abstractparticipant.cpp
@@ -38,7 +38,7 @@ Models::AbstractParticipant::~AbstractParticipant()
 
 int Models::AbstractParticipant::columnCount() const
 {
-    return 5;
+    return 4;
 }
 
 QVariant Models::AbstractParticipant::data(int column) const
diff --git a/ui/models/participant.cpp b/ui/models/participant.cpp
new file mode 100644
index 0000000..16f5cb7
--- /dev/null
+++ b/ui/models/participant.cpp
@@ -0,0 +1,115 @@
+/*
+ * Squawk messenger. 
+ * Copyright (C) 2019  Yury Gubich <blue@macaw.me>
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "participant.h"
+
+#include <QDebug>
+
+Models::Participant::Participant(const QMap<QString, QVariant>& data, Models::Item* parentItem):
+    AbstractParticipant(participant, data, parentItem),
+    affiliation(Shared::Affiliation::unspecified),
+    role(Shared::Role::unspecified)
+{
+    QMap<QString, QVariant>::const_iterator itr = data.find("affiliation");
+    if (itr != data.end()) {
+        setAffiliation(itr.value().toUInt());
+    }
+    
+    itr = data.find("role");
+    if (itr != data.end()) {
+        setRole(itr.value().toUInt());
+    }
+}
+
+Models::Participant::~Participant()
+{
+}
+
+int Models::Participant::columnCount() const
+{
+    return 6;
+}
+
+QVariant Models::Participant::data(int column) const
+{
+    switch (column) {
+        case 4:
+            return static_cast<uint8_t>(affiliation);
+        case 5:
+            return static_cast<uint8_t>(role);
+        default:
+            return AbstractParticipant::data(column);
+    }
+}
+
+void Models::Participant::update(const QString& key, const QVariant& value)
+{
+    if (key == "affiliation") {
+        setAffiliation(value.toUInt());
+    } else if (key == "role") {
+        setRole(value.toUInt());
+    } else {
+        AbstractParticipant::update(key, value);
+    }
+}
+
+Shared::Affiliation Models::Participant::getAffiliation() const
+{
+    return affiliation;
+}
+
+void Models::Participant::setAffiliation(Shared::Affiliation p_aff)
+{
+    if (p_aff != affiliation) {
+        affiliation = p_aff;
+        changed(4);
+    }
+}
+
+void Models::Participant::setAffiliation(unsigned int aff)
+{
+    if (aff <= static_cast<uint8_t>(Shared::affiliationHighest)) {
+        Shared::Affiliation affil = static_cast<Shared::Affiliation>(aff);
+        setAffiliation(affil);
+    } else {
+        qDebug() << "An attempt to set wrong affiliation" << aff << "to the room participant" << name;
+    }
+}
+
+Shared::Role Models::Participant::getRole() const
+{
+    return role;
+}
+
+void Models::Participant::setRole(Shared::Role p_role)
+{
+    if (p_role != role) {
+        role = p_role;
+        changed(5);
+    }
+}
+
+void Models::Participant::setRole(unsigned int p_role)
+{
+    if (p_role <= static_cast<uint8_t>(Shared::roleHighest)) {
+        Shared::Role r = static_cast<Shared::Role>(p_role);
+        setRole(r);
+    } else {
+        qDebug() << "An attempt to set wrong role" << p_role << "to the room participant" << name;
+    }
+}
diff --git a/ui/models/participant.h b/ui/models/participant.h
new file mode 100644
index 0000000..9c6ddbc
--- /dev/null
+++ b/ui/models/participant.h
@@ -0,0 +1,52 @@
+/*
+ * Squawk messenger. 
+ * Copyright (C) 2019  Yury Gubich <blue@macaw.me>
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef MODELS_PARTICIPANT_H
+#define MODELS_PARTICIPANT_H
+
+#include "abstractparticipant.h"
+
+namespace Models {
+
+class Participant : public Models::AbstractParticipant
+{
+public:
+    Participant(const QMap<QString, QVariant> &data, Item *parentItem = 0);
+    ~Participant();
+    
+    int columnCount() const override;
+    QVariant data(int column) const override;
+
+    void update(const QString& key, const QVariant& value) override;
+    
+    Shared::Affiliation getAffiliation() const;
+    void setAffiliation(Shared::Affiliation p_aff);
+    void setAffiliation(unsigned int aff);
+    
+    Shared::Role getRole() const;
+    void setRole(Shared::Role p_role);
+    void setRole(unsigned int role);
+
+private:
+    Shared::Affiliation affiliation;
+    Shared::Role role;
+};
+
+}
+
+#endif // MODELS_PARTICIPANT_H
diff --git a/ui/models/presence.cpp b/ui/models/presence.cpp
index 20ddb06..b6be0fe 100644
--- a/ui/models/presence.cpp
+++ b/ui/models/presence.cpp
@@ -28,6 +28,11 @@ Models::Presence::~Presence()
 {
 }
 
+int Models::Presence::columnCount() const
+{
+    return 5;
+}
+
 QVariant Models::Presence::data(int column) const
 {
     switch (column) {
diff --git a/ui/models/presence.h b/ui/models/presence.h
index b6b9df9..c396f0c 100644
--- a/ui/models/presence.h
+++ b/ui/models/presence.h
@@ -33,7 +33,8 @@ public:
     typedef std::deque<Shared::Message> Messages;
     explicit Presence(const QMap<QString, QVariant> &data, Item *parentItem = 0);
     ~Presence();
-
+    
+    int columnCount() const override;
     QVariant data(int column) const override;
     
     QIcon getStatusIcon(bool big = false) const override;
diff --git a/ui/models/room.cpp b/ui/models/room.cpp
index ab56b11..24e1399 100644
--- a/ui/models/room.cpp
+++ b/ui/models/room.cpp
@@ -18,6 +18,7 @@
 
 #include "room.h"
 #include <QIcon>
+#include <QDebug>
 
 Models::Room::Room(const QString& p_jid, const QMap<QString, QVariant>& data, Models::Item* parentItem):
     Item(room, data, parentItem),
@@ -25,7 +26,8 @@ Models::Room::Room(const QString& p_jid, const QMap<QString, QVariant>& data, Mo
     joined(false),
     jid(p_jid),
     nick(""),
-    messages()
+    messages(),
+    participants()
 {
     QMap<QString, QVariant>::const_iterator itr = data.find("autoJoin");
     if (itr != data.end()) {
@@ -127,6 +129,9 @@ void Models::Room::setJoined(bool p_joined)
     if (joined != p_joined) {
         joined = p_joined;
         changed(2);
+        if (!joined) {
+            toOfflineState();
+        }
     }
 }
 
@@ -217,3 +222,67 @@ void Models::Room::getMessages(Models::Room::Messages& container) const
         container.push_back(msg);
     }
 }
+
+void Models::Room::toOfflineState()
+{
+    emit childIsAboutToBeRemoved(this, 0, childItems.size());
+    for (int i = 0; i < childItems.size(); ++i) {
+        Item* item = childItems[i];
+        disconnect(item, SIGNAL(childChanged(Models::Item*, int, int)), this, SLOT(refresh()));
+        Item::_removeChild(i);
+        item->deleteLater();
+    }
+    childItems.clear();
+    participants.clear();
+    emit childRemoved();
+}
+
+void Models::Room::addParticipant(const QString& p_name, const QMap<QString, QVariant>& data)
+{
+    std::map<QString, Participant*>::const_iterator itr = participants.find(p_name);
+    if (itr != participants.end()) {
+        qDebug() << "An attempt to add already existing participant" << p_name << "to the room" << name << ", updating instead";
+        handleParticipantUpdate(itr, data);
+    } else {
+        Participant* part = new Participant(data);
+        part->setName(p_name);
+        participants.insert(std::make_pair(p_name, part));
+        appendChild(part);
+    }
+}
+
+void Models::Room::changeParticipant(const QString& p_name, const QMap<QString, QVariant>& data)
+{
+    std::map<QString, Participant*>::const_iterator itr = participants.find(p_name);
+    if (itr == participants.end()) {
+        qDebug() << "An attempt to change non existing participant" << p_name << "from the room" << name << ", skipping";
+    } else {
+        handleParticipantUpdate(itr, data);
+    }
+}
+
+void Models::Room::removeParticipant(const QString& p_name)
+{
+    std::map<QString, Participant*>::const_iterator itr = participants.find(p_name);
+    if (itr == participants.end()) {
+        qDebug() << "An attempt to remove non existing participant" << p_name << "from the room" << name << ", skipping";
+    } else {
+        Participant* p = itr->second;
+        participants.erase(itr);
+        removeChild(p->row());
+        p->deleteLater();
+    }
+}
+
+void Models::Room::handleParticipantUpdate(std::map<QString, Participant*>::const_iterator itr, const QMap<QString, QVariant>& data)
+{
+    Participant* part = itr->second;
+    const QString& p_name = itr->first;
+    for (QMap<QString, QVariant>::const_iterator itr = data.begin(), end = data.end(); itr != end; ++itr) {
+        part->update(itr.key(), itr.value());
+    }
+    if (p_name != part->getName()) {
+        participants.erase(itr);
+        participants.insert(std::make_pair(part->getName(), part));
+    }
+}
diff --git a/ui/models/room.h b/ui/models/room.h
index 2cf8fe5..bb443f5 100644
--- a/ui/models/room.h
+++ b/ui/models/room.h
@@ -20,6 +20,7 @@
 #define MODELS_ROOM_H
 
 #include "item.h"
+#include "participant.h"
 #include "../global.h"
 
 namespace Models {
@@ -59,8 +60,15 @@ public:
     unsigned int getMessagesCount() const;
     void dropMessages();
     void getMessages(Messages& container) const;
-
-protected:
+    
+    void addParticipant(const QString& name, const QMap<QString, QVariant>& data);
+    void changeParticipant(const QString& name, const QMap<QString, QVariant>& data);
+    void removeParticipant(const QString& name);
+    
+    void toOfflineState() override;
+    
+private:
+    void handleParticipantUpdate(std::map<QString, Participant*>::const_iterator itr, const QMap<QString, QVariant>& data);
     
 private:
     bool autoJoin;
@@ -68,6 +76,7 @@ private:
     QString jid;
     QString nick;
     Messages messages;
+    std::map<QString, Participant*> participants;
 
 };
 
diff --git a/ui/models/roster.cpp b/ui/models/roster.cpp
index 7e3ea4e..d0a7dcc 100644
--- a/ui/models/roster.cpp
+++ b/ui/models/roster.cpp
@@ -783,3 +783,39 @@ void Models::Roster::removeRoom(const QString& account, const QString jid)
     room->deleteLater();
     rooms.erase(itr);
 }
+
+void Models::Roster::addRoomParticipant(const QString& account, const QString& jid, const QString& name, const QMap<QString, QVariant>& data)
+{
+    ElId id = {account, jid};
+    std::map<ElId, Room*>::const_iterator itr = rooms.find(id);
+    if (itr == rooms.end()) {
+        qDebug() << "An attempt to add participant" << name << "non existing room" << jid << "of an account" << account << ", skipping";
+        return;
+    } else {
+        itr->second->addParticipant(name, data);
+    }
+}
+
+void Models::Roster::changeRoomParticipant(const QString& account, const QString& jid, const QString& name, const QMap<QString, QVariant>& data)
+{
+    ElId id = {account, jid};
+    std::map<ElId, Room*>::const_iterator itr = rooms.find(id);
+    if (itr == rooms.end()) {
+        qDebug() << "An attempt change participant" << name << "of non existing room" << jid << "of an account" << account << ", skipping";
+        return;
+    } else {
+        itr->second->changeParticipant(name, data);
+    }
+}
+
+void Models::Roster::removeRoomParticipant(const QString& account, const QString& jid, const QString& name)
+{
+    ElId id = {account, jid};
+    std::map<ElId, Room*>::const_iterator itr = rooms.find(id);
+    if (itr == rooms.end()) {
+        qDebug() << "An attempt remove participant" << name << "from non existing room" << jid << "of an account" << account << ", skipping";
+        return;
+    } else {
+        itr->second->removeParticipant(name);
+    }
+}
diff --git a/ui/models/roster.h b/ui/models/roster.h
index ad697e8..314e92d 100644
--- a/ui/models/roster.h
+++ b/ui/models/roster.h
@@ -58,6 +58,9 @@ public:
     void addRoom(const QString& account, const QString jid, const QMap<QString, QVariant>& data);
     void changeRoom(const QString& account, const QString jid, const QMap<QString, QVariant>& data);
     void removeRoom(const QString& account, const QString jid);
+    void addRoomParticipant(const QString& account, const QString& jid, const QString& name, const QMap<QString, QVariant>& data);
+    void changeRoomParticipant(const QString& account, const QString& jid, const QString& name, const QMap<QString, QVariant>& data);
+    void removeRoomParticipant(const QString& account, const QString& jid, const QString& name);
     QString getContactName(const QString& account, const QString& jid);
     
     QVariant data ( const QModelIndex& index, int role ) const override;
diff --git a/ui/squawk.cpp b/ui/squawk.cpp
index 4dccdf2..4117c97 100644
--- a/ui/squawk.cpp
+++ b/ui/squawk.cpp
@@ -480,3 +480,18 @@ void Squawk::removeRoom(const QString& account, const QString jid)
 {
     rosterModel.removeRoom(account, jid);
 }
+
+void Squawk::addRoomParticipant(const QString& account, const QString& jid, const QString& name, const QMap<QString, QVariant>& data)
+{
+    rosterModel.addRoomParticipant(account, jid, name, data);
+}
+
+void Squawk::changeRoomParticipant(const QString& account, const QString& jid, const QString& name, const QMap<QString, QVariant>& data)
+{
+    rosterModel.changeRoomParticipant(account, jid, name, data);
+}
+
+void Squawk::removeRoomParticipant(const QString& account, const QString& jid, const QString& name)
+{
+    rosterModel.removeRoomParticipant(account, jid, name);
+}
diff --git a/ui/squawk.h b/ui/squawk.h
index ae26bd3..f1f5803 100644
--- a/ui/squawk.h
+++ b/ui/squawk.h
@@ -81,6 +81,9 @@ public slots:
     void addRoom(const QString& account, const QString jid, const QMap<QString, QVariant>& data);
     void changeRoom(const QString& account, const QString jid, const QMap<QString, QVariant>& data);
     void removeRoom(const QString& account, const QString jid);
+    void addRoomParticipant(const QString& account, const QString& jid, const QString& name, const QMap<QString, QVariant>& data);
+    void changeRoomParticipant(const QString& account, const QString& jid, const QString& name, const QMap<QString, QVariant>& data);
+    void removeRoomParticipant(const QString& account, const QString& jid, const QString& name);
     
 private:
     typedef std::map<Models::Roster::ElId, Conversation*> Conversations;