Abner is one of the servants working in Dreamland Castle
In "The Madness of King Zøg", he is tasked with bringing King Zøg, who is subcumbing to insanity, his meal of roast poodle. Odval first listens at the door of the Throne room, and once he no longer hears Zøg he determines it's safe for Abner to go in, as Zøg is likely sleeping. He does instruct Abner to get out fast after delivering the meal. Unfortunately for Abner, Zøg is still awake, finds the poodle disgusting, and launches first the dish and then Abner out of the throne room with a catapult.