diff --git a/app/Resources/views/admin/user.html.twig b/app/Resources/views/admin/user.html.twig
index 468ca3ac..1e6b093f 100644
--- a/app/Resources/views/admin/user.html.twig
+++ b/app/Resources/views/admin/user.html.twig
@@ -22,7 +22,7 @@
         {% for entry in entries %}
             <tr>
                 <td class="hidden-xs">{{ entry.id }}</td>
-                <td>{{ entry.alias|default(entry.username) }}</td>
+                <td>{{ widgets.username(entry) }}</td>
                 <td class="hidden-xs">{{ entry.username }}</td>
                 <td class="hidden-xs hidden-sm">{{ entry.email }}</td>
                 <td class="hidden-xs">{{ entry.title }}</td>
diff --git a/app/Resources/views/user/profile.html.twig b/app/Resources/views/user/profile.html.twig
index cf29b1a8..ab6254bd 100644
--- a/app/Resources/views/user/profile.html.twig
+++ b/app/Resources/views/user/profile.html.twig
@@ -149,11 +149,12 @@
 
 {% macro profile_box(user, stats) %}
     {% import "AvanzuAdminThemeBundle:layout:macros.html.twig" as macro %}
+    {% import "macros/widgets.html.twig" as widgets %}
 
     <div class="box box-primary">
         <div class="box-body box-profile">
             {{ macro.avatar(user.avatar, user.username, 'profile-user-img img-responsive img-circle') }}
-            <h3 class="profile-username text-center">{{ user.alias|default(user.username) }}</h3>
+            <h3 class="profile-username text-center">{{ widgets.username(user) }}</h3>
 
             <p class="text-muted text-center">{{ user.title }}</p>
 
@@ -186,6 +187,8 @@
 {# -------------------------------- UNUSED FOR NOW -------------------------------- #}
 {% macro profile_list_unused(user, items, color) %}
     {% import "AvanzuAdminThemeBundle:layout:macros.html.twig" as macro %}
+    {% import "macros/widgets.html.twig" as widgets %}
+
     <div class="box box-widget widget-user-2">
         <!-- Add the bg color to the header using any of the bg-* classes -->
         <div class="widget-user-header bg-{{ color|default(kimai_context.box_color) }}">
@@ -193,7 +196,7 @@
                 {{ macro.avatar(user.avatar, user.username) }}
             </div>
             <!-- /.widget-user-image -->
-            <h3 class="widget-user-username">{{ user.alias|default(user.username) }}</h3>
+            <h3 class="widget-user-username">{{ widgets.username(user) }}</h3>
             <h5 class="widget-user-desc">{{ user.title }}</h5>
         </div>
         <div class="box-footer no-padding">
@@ -209,10 +212,11 @@
 {# -------------------------------- UNUSED FOR NOW -------------------------------- #}
 {% macro profile_box_unused(user, stats, color) %}
     {% import "AvanzuAdminThemeBundle:layout:macros.html.twig" as macro %}
+    {% import "macros/widgets.html.twig" as widgets %}
 
     <div class="box box-widget widget-user">
         <div class="widget-user-header bg-{{ color|default(kimai_context.box_color) }}">
-            <h3 class="widget-user-username">{{ user.alias|default(user.username) }}</h3>
+            <h3 class="widget-user-username">{{ widgets.username(user) }}</h3>
             <h5 class="widget-user-desc">{{ user.title }}</h5>
         </div>
         <div class="widget-user-image">
diff --git a/src/AppBundle/DataFixtures/ORM/LoadFixtures.php b/src/AppBundle/DataFixtures/ORM/LoadFixtures.php
index 89384a8b..7c9ce4df 100644
--- a/src/AppBundle/DataFixtures/ORM/LoadFixtures.php
+++ b/src/AppBundle/DataFixtures/ORM/LoadFixtures.php
@@ -43,53 +43,77 @@ class LoadFixtures implements FixtureInterface, ContainerAwareInterface
         $passwordEncoder = $this->container->get('security.password_encoder');
 
         $claraCustomer = new User();
-        $claraCustomer->setAlias('Clara Haynes');
-        $claraCustomer->setTitle('CFO');
-        $claraCustomer->setUsername('clara_customer');
-        $claraCustomer->setEmail('clara_customer@example.com');
-        $claraCustomer->setRoles(['ROLE_CUSTOMER']);
-        $claraCustomer->setAvatar('https://www.gravatar.com/avatar/00000000000000000000000000000000?d=monsterid&f=y');
-        $claraCustomer->setPassword($passwordEncoder->encodePassword($claraCustomer, self::DEFAULT_PASSWORD));
+        $claraCustomer
+            ->setAlias('Clara Haynes')
+            ->setTitle('CFO')
+            ->setUsername('clara_customer')
+            ->setEmail('clara_customer@example.com')
+            ->setRoles(['ROLE_CUSTOMER'])
+            ->setAvatar('https://www.gravatar.com/avatar/00000000000000000000000000000000?d=monsterid&f=y')
+            ->setPassword($passwordEncoder->encodePassword($claraCustomer, self::DEFAULT_PASSWORD))
+        ;
         $manager->persist($claraCustomer);
 
         $johnUser = new User();
-        $johnUser->setAlias('John Doe');
-        $johnUser->setTitle('Developer');
-        $johnUser->setUsername('john_user');
-        $johnUser->setEmail('john_user@example.com');
-        $johnUser->setRoles(['ROLE_USER']);
-        $johnUser->setAvatar('https://www.gravatar.com/avatar/00000000000000000000000000000000?d=retro&f=y');
-        $johnUser->setPassword($passwordEncoder->encodePassword($claraCustomer, self::DEFAULT_PASSWORD));
+        $johnUser
+            ->setAlias('John Doe')
+            ->setTitle('Developer')
+            ->setUsername('john_user')
+            ->setEmail('john_user@example.com')
+            ->setRoles(['ROLE_USER'])
+            ->setAvatar('https://www.gravatar.com/avatar/00000000000000000000000000000000?d=retro&f=y')
+            ->setPassword($passwordEncoder->encodePassword($claraCustomer, self::DEFAULT_PASSWORD))
+        ;
         $manager->persist($johnUser);
 
+        $deactiveUser = new User();
+        $deactiveUser
+            ->setAlias('Chris Deactive')
+            ->setTitle('Developer (left company)')
+            ->setUsername('chris_user')
+            ->setEmail('chris_user@example.com')
+            ->setRoles(['ROLE_USER'])
+            ->setAvatar('https://www.gravatar.com/avatar/00000000000000000000000000000000?d=retro&f=y')
+            ->setPassword($passwordEncoder->encodePassword($claraCustomer, self::DEFAULT_PASSWORD))
+            // inactive for testing user login and UI
+            ->setActive(false)
+        ;
+        $manager->persist($deactiveUser);
+
         $tonyTeamlead = new User();
-        $tonyTeamlead->setAlias('Tony Maier');
-        $tonyTeamlead->setTitle('Head of Development');
-        $tonyTeamlead->setUsername('tony_teamlead');
-        $tonyTeamlead->setEmail('tony_teamlead@example.com');
-        $tonyTeamlead->setRoles(['ROLE_TEAMLEAD']);
-        $tonyTeamlead->setAvatar('https://en.gravatar.com/userimage/3533186/bf2163b1dd23f3107a028af0195624e9.jpeg');
-        $tonyTeamlead->setPassword($passwordEncoder->encodePassword($claraCustomer, self::DEFAULT_PASSWORD));
+        $tonyTeamlead
+            ->setAlias('Tony Maier')
+            ->setTitle('Head of Development')
+            ->setUsername('tony_teamlead')
+            ->setEmail('tony_teamlead@example.com')
+            ->setRoles(['ROLE_TEAMLEAD'])
+            ->setAvatar('https://en.gravatar.com/userimage/3533186/bf2163b1dd23f3107a028af0195624e9.jpeg')
+            ->setPassword($passwordEncoder->encodePassword($claraCustomer, self::DEFAULT_PASSWORD))
+        ;
         $manager->persist($tonyTeamlead);
 
         $annaAdmin = new User();
-        $annaAdmin->setAlias('Anna Smith');
-        $annaAdmin->setTitle('Administrator');
-        $annaAdmin->setUsername('anna_admin');
-        $annaAdmin->setEmail('anna_admin@example.com');
-        $annaAdmin->setRoles(['ROLE_ADMIN']);
-        // no avatar to test default image!
-        $annaAdmin->setPassword($passwordEncoder->encodePassword($claraCustomer, self::DEFAULT_PASSWORD));
+        $annaAdmin
+            ->setAlias('Anna Smith')
+            ->setTitle('Administrator')
+            ->setUsername('anna_admin')
+            ->setEmail('anna_admin@example.com')
+            ->setRoles(['ROLE_ADMIN'])
+            // no avatar to test default image!
+            ->setPassword($passwordEncoder->encodePassword($claraCustomer, self::DEFAULT_PASSWORD))
+        ;
         $manager->persist($annaAdmin);
 
         $susanSuper = new User();
-        $susanSuper->setAlias('Susan Sanchez');
-        $susanSuper->setTitle('Super Administrator');
-        $susanSuper->setUsername('susan_super');
-        $susanSuper->setEmail('susan_super@example.com');
-        $susanSuper->setRoles(['ROLE_SUPER_ADMIN']);
-        $susanSuper->setAvatar('https://www.gravatar.com/avatar/00000000000000000000000000000000?d=wavatar&f=y');
-        $susanSuper->setPassword($passwordEncoder->encodePassword($claraCustomer, self::DEFAULT_PASSWORD));
+        $susanSuper
+            // no alias to test the username macros
+            ->setTitle('Super Administrator')
+            ->setUsername('susan_super')
+            ->setEmail('susan_super@example.com')
+            ->setRoles(['ROLE_SUPER_ADMIN'])
+            ->setAvatar('/bundles/avanzuadmintheme/img/avatar.png')
+            ->setPassword($passwordEncoder->encodePassword($claraCustomer, self::DEFAULT_PASSWORD))
+        ;
         $manager->persist($susanSuper);
 
         $manager->flush();
diff --git a/src/AppBundle/Entity/User.php b/src/AppBundle/Entity/User.php
index 46a45ac6..c3730a54 100644
--- a/src/AppBundle/Entity/User.php
+++ b/src/AppBundle/Entity/User.php
@@ -4,6 +4,7 @@ namespace AppBundle\Entity;
 
 use AppBundle\Validator\Constraints as KimaiAssert;
 use Doctrine\ORM\Mapping as ORM;
+use Symfony\Component\Security\Core\User\AdvancedUserInterface;
 use Symfony\Component\Security\Core\User\UserInterface;
 use Symfony\Component\Validator\Constraints as Assert;
 use Symfony\Bridge\Doctrine\Validator\Constraints\UniqueEntity;
@@ -24,7 +25,7 @@ use Symfony\Bridge\Doctrine\Validator\Constraints\UniqueEntity;
  *
  * @author Kevin Papst <kevin@kevinpapst.de>
  */
-class User implements UserInterface
+class User implements UserInterface, AdvancedUserInterface
 {
 
     const DEFAULT_ROLE = 'ROLE_USER';
@@ -193,11 +194,20 @@ class User implements UserInterface
     /**
      * @return boolean
      */
-    public function getActive()
+    public function isActive()
     {
         return $this->active;
     }
 
+    /**
+     * @deprecated
+     * @return boolean
+     */
+    public function getActive()
+    {
+        return $this->isActive();
+    }
+
     /**
      * @param string $password
      * @return $this
@@ -359,6 +369,38 @@ class User implements UserInterface
         return $this;
     }
 
+    /**
+     * @inheritdoc
+     */
+    public function isAccountNonExpired()
+    {
+        return $this->isEnabled();
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function isAccountNonLocked()
+    {
+        return $this->isEnabled();
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function isCredentialsNonExpired()
+    {
+        return $this->isEnabled();
+    }
+
+    /**
+     * @return bool
+     */
+    public function isEnabled()
+    {
+        return $this->isActive();
+    }
+
     /**
      * Returns the salt that was originally used to encode the password.
      */