diff --git a/src/character/models/character.py b/src/character/models/character.py
index e811e9d..cc87a94 100644
--- a/src/character/models/character.py
+++ b/src/character/models/character.py
@@ -90,7 +90,9 @@ class CharacterQuerySet(models.QuerySet):
         from party.models import Party
 
         return self.filter(
-            Q(player=user) | Q(parties__in=Party.objects.related_to(user))
+            Q(player=user)
+            | Q(parties__in=Party.objects.related_to(user))
+            | Q(invites__in=Party.objects.related_to(user))
         )
 
 
diff --git a/src/character/templates/character/snippets/characters_list/character_card.html b/src/character/templates/character/snippets/characters_list/character_card.html
index 1965269..59a0a53 100644
--- a/src/character/templates/character/snippets/characters_list/character_card.html
+++ b/src/character/templates/character/snippets/characters_list/character_card.html
@@ -60,11 +60,11 @@
                         </a>
                     {% endif %}
                 {% elif character|managed_by:user %}
-                    <a href="{% url "character:view" pk=character.pk %}{% if party %}?party={{ party.pk }}{% endif %}" class="btn btn-primary">
+                    <a href="{% url "character:view" pk=character.pk %}{% if party %}?party={{ party.pk }}{% endif %}" class="btn btn-primary manage">
                         <i class="fa-solid fa-cog"></i> Gérer
                     </a>
                 {% else %}
-                    <a href="{% url "character:view" pk=character.pk %}{% if party %}?party={{ party.pk }}{% endif %}" class="btn btn-primary">
+                    <a href="{% url "character:view" pk=character.pk %}{% if party %}?party={{ party.pk }}{% endif %}" class="btn btn-primary observe">
                         <i class="fa-solid fa-eye"></i> Observer
                     </a>
                 {% endif %}
diff --git a/src/party/tests/test_interactions.py b/src/party/tests/test_interactions.py
index c891e9c..406195e 100644
--- a/src/party/tests/test_interactions.py
+++ b/src/party/tests/test_interactions.py
@@ -37,3 +37,30 @@ def test_add_character_to_existing_group(selenium: WebDriver, live_server: LiveS
     assert selenium.current_url == live_server.url + reverse("party:list")
     party.refresh_from_db()
     assert set(party.invited_characters.all()) == {character}
+
+
+@pytest.mark.django_db
+def test_gm_observe_invited_character_in_group(
+    selenium: WebDriver, live_server: LiveServer
+):
+    call_command("loaddata", "initial_data")
+
+    username, password = "gm", "password"
+    gm = User.objects.create_user(username, password=password)
+    player = User.objects.create_user("player")
+    party = baker.make(Party, game_master=gm)
+    character = baker.make(Character, player=player)
+    party.invited_characters.add(character)
+
+    selenium.get(live_server.url)
+    login(selenium, username, password)
+
+    selenium.get(live_server.url + reverse("party:list"))
+    selenium.find_element(
+        By.CSS_SELECTOR, f".party[data-id='{party.pk}'] .access"
+    ).click()
+    selenium.find_element(
+        By.CSS_SELECTOR, f".character[data-id='{character.pk}'] .observe"
+    ).click()
+    title = selenium.find_element(By.TAG_NAME, "h1").text.strip()
+    assert title == character.name