David
Dennis
Harlee
Sophie
Liz
Jeff
Somewhere / Flomar
Lefkowitz
Esther
Andy
Nicholas
Jonas
Young David
Boy at Group Home
Housekeeper
Dr. Berg
Miss Margie
Mrs. Tompkins
Dracoban Director
Earl of Dracoban
Draconian Warrior
Policeman at School
Leonard (as David Lewis)
Linus (as Edmond Wong)
Cashier
Baseball Fan
Tough Cop (Stunt / Crash) (as Lauro Chartrand)
Tough Boy at School
Committee Member
Observatory Director
Cop (David's House)
Barber
Mary in Photos
Jeff's Date at BBQ (as Suzy Joachim)
Tina
Woman in Lecture (uncredited)
Baseball Fan (uncredited)
Makeup Artist Fitting Alien Eyes (uncredited)