Jake Ochmonek Tanner (born c. 1975) was the nephew of Trevor and Raquel Ochmonek and is now the son of Willie and Kate Tanner After his father goes to prison for 5 years for fixing horse races, Jake goes to live with Trevor and Raquel. Jake has a tenuous relationship with his mother, Elaine Ochmonek, who struggles with kleptomania. Jake also has a brother and cousin Victor who are both in jail.
Jake later broke into the Tanner's garage in an attempt to steal their telescope, forcing ALF to reveal himself when he stops the larceny. ALF and Jake become good friends and Jake stops stealing things and concentrates his efforts on repairing electronics. ALF had rather taught him how to reduce his shy and rude behavior towards people, especially Brian and Lynn.
Jake has a crush on Lynn Tanner, who spurns his many advances.
Jake gets along better with Brian Tanner, who seems to be more like a big brother. In one case where Brian was worried about a forthcoming campout with his Badger Scout troop as he was afraid of the outdoors at night, Jake volunteers to help Brian overcome it, and enlisting ALF to help as well. Jake thinks this is important as Brian would probably have a hard time getting dates when he is older as most girls do social events during night hours.