diff --git a/masquerade.module b/masquerade.module
index 5c7da88..323a363 100644
--- a/masquerade.module
+++ b/masquerade.module
@@ -652,7 +652,12 @@ function masquerade_block_1() {
 function masquerade_block_1_validate($form, &$form_state) {
   global $user;
   //unset($form);
-  $name = $form_state['values']['masquerade_user_field'];
+  if (module_exists('realname')) {
+    $name = preg_replace('^.* \((.*)\)^', '$1', $form_state['values']['masquerade_user_field']);
+  }
+  else {
+    $name = $form_state['values']['masquerade_user_field'];
+  }
   $allowed = FALSE;
   $to_uid = db_select('users', 'u')
     ->fields('u', array('uid'))
@@ -723,11 +728,29 @@ function masquerade_autocomplete($string) {
     $matches[$anonymous] = $anonymous;
   }
   // Other suggestions.
-  $result = db_query_range("SELECT name FROM {users} WHERE LOWER(name) LIKE LOWER(:string)", 0, 10, array(
-    ':string' => $string . '%',
-  ));
+  if (module_exists('realname')) {
+    $result = db_query_range("
+      SELECT u.name, rn.realname
+      FROM {users} u
+      LEFT JOIN {realname} rn ON rn.uid = u.uid
+      WHERE LOWER(realname) LIKE LOWER(:string)", 0, 10, array(
+      ':string' => '%' . $string . '%',
+    ));
+  }
+  else {
+    $result = db_query_range("SELECT name FROM {users} WHERE LOWER(name) LIKE LOWER(:string)", 0, 10, array(
+      ':string' => '%' . $string . '%',
+    ));
+  }
+
   foreach ($result as $user) {
-    $matches[$user->name] = check_plain($user->name);
+    if (module_exists('realname')) {
+      $name = $user->realname . ' (' . $user->name . ')';
+      $matches[$name] = $name;
+    }
+    else {
+      $matches[$user->name] = check_plain($user->name);
+    }
   }
   if (module_exists('devel')) {
     $GLOBALS['devel_shutdown'] = FALSE;