In Gravity Falls, Li'l Gideon appeared to experience that if he can not have Mabel, no one can. Detlef produced a further look in the third-year finale "Li'l Sebastian", where Tom and Jean-Ralphio hired him to get the job done for their new entertainment enterprise, Entertainment 720. His only position was to shoot basketballs all around the workplace Detlef tried using supplying them company guidance, but they disregarded it.