Curtis is the name of ALF's brother. Curtis is only seen in the ALF cartoons and the comics ("ALF Tales" and "ALF: The Animated Series"). Nothing is known of the fate of any of ALF's family members after the undestruction of the planet Melmac.
Curtis is voiced by Michael Fantini. The character then appeared in Alf tv show as a gardener with jake and Brian Tanner planting weeds