ALF (voice)
Willie Tanner
Kate Tanner
Lynn Tanner
Brian Tanner
Trevor Ochmonek / Trevor Ochmonek (archive footage)
Raquel Ochmonek / Raquel Ochmonek (archive footage)
Jake Ochmonek
Dorothy Halligan
Neal Tanner
Dr. Lawrence 'Larry' Dykstra
Jody / Jody (archive footage)
Mrs. Byrd
Whizzer
Robert Sherwood
Gravel Gus / Gravel Gus (credit only)
Cat Woman / Cat Woman (archive footage)
Officer Griswald / Lenny Scott
Bernice Billings (credit only) / Bernice Billings (archive footage)
Mrs. Lyman
Brenda
Danny Duckworth
Flakey Pete
Dr. Joyce Brothers
