diff --git a/primehub/admin_groups.py b/primehub/admin_groups.py
index e4034b5..b0bdc72 100644
--- a/primehub/admin_groups.py
+++ b/primehub/admin_groups.py
@@ -856,9 +856,26 @@ def create(self, config: dict):
             ...GroupBasicInfo
           }
         }
+        fragment GroupBasicInfo on Group {
+          id
+          displayName
+          name
+          quotaCpu
+          quotaGpu
+          quotaMemory
+          projectQuotaCpu
+          projectQuotaGpu
+          projectQuotaMemory
+          sharedVolumeCapacity
+        }
         """ + group_basic_info
 
         apply_auto_fill(config)
+
+        # cannot specify admins when creating
+        if config.get('admins'):
+            config['admins'] = ''
+
         results = self.request({'data': validate(config)}, query)
 
         if 'data' not in results:
@@ -1002,10 +1019,13 @@ def get(self, id: str) -> dict:
 
         if 'data' not in results:
             return results
+        group = results['data']['group']
+        if not group:
+            return group
 
-        results['data']['group']['volumes'] = results['data']['group'].pop('datasets', '[]')
-
-        return results['data']['group']
+        group['volumes'] = group.pop('datasets', '[]')
+        self._output_format_admins(id, group)
+        return group
 
     def _everyone_group_id(self) -> dict:
         query = """
@@ -1070,6 +1090,9 @@ def update(self, id: str, config: dict):
         }
         """ + group_basic_info
 
+        if config.get('admins'):
+            config['admins'] = self._transform_admins(id, config.get('admins', []))
+
         variables = {'where': {'id': id}, 'data': validate(config, True)}
         results = self.request(variables, query)
 
@@ -1088,7 +1111,9 @@ def update(self, id: str, config: dict):
         updated_results = self.request({'where': {'id': id}}, updated_query)
         if 'data' not in updated_results:
             return updated_results
-        return updated_results['data']['group']
+        updated_group = updated_results['data']['group']
+        self._output_format_admins(id, updated_group)
+        return updated_group
 
     @cmd(name='delete', description='Delete the group by id', return_required=True)
     def delete(self, id: str) -> dict:
@@ -1115,5 +1140,42 @@ def delete(self, id: str) -> dict:
             return results
         return results['data']['deleteGroup']
 
+    def _transform_admins(self, id: str, user_ids: List[str]):
+        if len(user_ids) == 0:
+            return ''
+
+        member_dict = {}
+        users = self.primehub.admin.admin_groups.list_users(id)
+        for user in users:
+            user_id = user['id']
+            username = user['username']
+            member_dict[user_id] = username
+
+        admin_usernames = []
+        invalid_user_ids = []
+        for user_id in user_ids:
+            if user_id in member_dict:
+                admin_usernames.append(member_dict[user_id])
+            else:
+                invalid_user_ids.append(user_id)
+
+        if len(invalid_user_ids) > 0:
+            _invalid_ids = ', '.join(invalid_user_ids)
+            msg = f'admins contain invalid user ids: {_invalid_ids}'
+            raise PrimeHubException(msg)
+        return ','.join(admin_usernames)
+
+    def _output_format_admins(self, id: str, group: dict):
+        admin_users = []
+        admin_usernames = group.get('admins', '').split(',')
+        users = self.primehub.admin.admin_groups.list_users(id)
+        for user in users:
+            if user['username'] in admin_usernames:
+                admin_users.append(dict(
+                    id=user['id'],
+                    username=user['username']
+                ))
+        group['admins'] = admin_users
+
     def help_description(self):
         return "Manage groups"
diff --git a/primehub/admin_users.py b/primehub/admin_users.py
index 3dd1569..3bf37f6 100644
--- a/primehub/admin_users.py
+++ b/primehub/admin_users.py
@@ -352,6 +352,8 @@ def get(self, id: str) -> dict:
         if 'data' not in results:
             return results
         user = results['data']['user']
+        if not user:
+            return user
 
         # hide the everyone group
         groups = user['groups']