How to forward action processing to a second action in Laravel Controllers?

I have two similar user profiles, and they share pretty much the same view structure and information. However, a "special user profile" would display an additional block, and require a different URL - say, /user/igor and /special-user/igor.

What's the best approach to handle this?

In other frameworks I would have pseudocode similar to this:

class UserController extends Controller {

    /** @url /user/{$slug} */
    function actionSimpleUser($slug) {
        if (!$this->viewHas('special')) {
            $this->toView('special', false);
        }
        return $this->render('user', ['slug' => $slug]);
    }

    /** @url /special-user/{$slug} */
    function actionSpecialUser($slug) {
        $this->toView('special', true);
        return $this->forwardAction('user/simpleUser', [$slug]);
    }
}

via Chebli Mohamed