diff --git a/src/backoffice/templates/backoffice/assembly_event.html b/src/backoffice/templates/backoffice/assembly_event.html
index 4960c427639056e4f1964212db524ec26f316ebc..d38a6dfeaa9839b1a8e3b6e45d4e1a8011872cf2 100644
--- a/src/backoffice/templates/backoffice/assembly_event.html
+++ b/src/backoffice/templates/backoffice/assembly_event.html
@@ -1,5 +1,6 @@
 {% extends 'backoffice/base.html' %}
 {% load bootstrap4 %}
+{% load widget_tweaks %}
 {% load i18n %}
 
 {% block title %}
@@ -9,6 +10,30 @@
 {% block content %}
 {% include "backoffice/assembly_edit_header.html" %}
 
+<div class="row mb-3">
+    <div class="col-md-12">
+        <div class="card border-secondary">
+            <div class="card-header bg-default">
+                {% trans 'Event__participants-title' %}
+            </div>
+            <div class="card-body">
+                <h3>{% trans 'Event__participants' %}</h3>
+                <ul>
+                {% for participant in event.participants.all %}
+                    <li>{{ participant }}</li>
+                {% endfor %}
+                </ul>
+                <h3>{% trans 'Event__speaker-assign-title' %}</h3>
+                <form class="form-inline" action="{% url 'backoffice:assembly-event-assign-speaker' assembly=assembly.pk pk=event.pk %}" method="POST">{% csrf_token %}
+                    <label class="sr-only" for="nickname">Name</label>
+                    {% render_field assign_form.nickname class+="form-control mb-2 mr-sm-2" placeholder="Nickname" %}
+                    <button type="submit" class="btn btn-secondary mb-2">{% trans 'Event__speaker-assign-btn' %}</button>
+                </form>
+            </div>
+        </div>
+    </div>
+</div>
+
 <div class="row mb-3">
   <div class="col-md-12">
     <form action="" method="POST" enctype="multipart/form-data">{% csrf_token %}
diff --git a/src/backoffice/urls.py b/src/backoffice/urls.py
index 3100c50fa88e7f3afb1e8f27de7fa2e4c81e7347..b26ad75e816402b32279f8d298bd26658586e1d7 100644
--- a/src/backoffice/urls.py
+++ b/src/backoffice/urls.py
@@ -64,7 +64,7 @@ urlpatterns = [
     path('assembly/<uuid:assembly>/events', events.AssemblyEventsView.as_view(), name='assembly-events'),
     path('assembly/<uuid:assembly>/e/<uuid:pk>/', events.AssemblyEventView.as_view(), name='assembly-event'),
     path('assembly/<uuid:assembly>/e/<uuid:pk>/remove', events.AssemblyRemoveEventView.as_view(), name='assembly-event-remove'),
-    path('assembly/<uuid:assembly>/e/<uuid:pk>/assign/speaker', events.AssignRoleView.as_view(), name='assembly-event-assign-speaker'),
+    path('assembly/<uuid:assembly>/e/<uuid:pk>/assign/speaker', events.AssignRoleView.as_view(), {'role': 'speaker',}, name='assembly-event-assign-speaker'),
 
     path('assembly/<uuid:assembly>/new_room', assemblies.CreateRoomView.as_view(), name='assembly-create-room'),
     path('assembly/<uuid:assembly>/new_project', assemblies.CreateProjectView.as_view(), name='assembly-create-project'),
diff --git a/src/backoffice/views/events.py b/src/backoffice/views/events.py
index a994b4c407103ac330a8abed976b889045f3d887..7c6adfdbdface8cce02d7f02ce693345a201a2e6 100644
--- a/src/backoffice/views/events.py
+++ b/src/backoffice/views/events.py
@@ -116,6 +116,9 @@ class AssemblyCreateEventView(AssemblyMixin, CreateView):
 
 
 class AssignRoleView(AssemblyMixin, FormView):
+    assembly_url_param = 'assembly'
+    assembly_management = True
+
     form_class = AssignRoleForm
 
     def get_context_data(self, *args, **kwargs):
@@ -136,10 +139,14 @@ class AssignRoleView(AssemblyMixin, FormView):
             user = get_object_or_404(PlatformUser, is_active=True, username=data['nickname'])
             event = get_object_or_404(Event, id=event_id)
             participant = EventParticipant(role=role, event=event, participant=user)
+            # I guess this is correct.
+            participant.is_accepted = True
+            participant.is_public = True
+            participant.save()
             messages.success(self.request, _('Event__Role-award-to') + str(user))
             logger.info(f'assigned role { role } to { user } by { self.request.user } for { event }')
 
-            return redirect('backoffice:assembly-events', assembly=self.assembly.pk, pk=self.event_id)
+            return redirect('backoffice:assembly-event', assembly=self.assembly.pk, pk=event_id)
         except PlatformUser.DoesNotExist:
             messages.error(self.request, _('404__User Not Found: ') + data['nickname'])
-            return redirect('backoffice:assembly-events', assembly=self.assembly.pk, pk=self.event_id)
\ No newline at end of file
+            return redirect('backoffice:assembly-event', assembly=self.assembly.pk, pk=event_id)
\ No newline at end of file