Amy O'Neill and Robert Oliveri were cast as Amy and Nick Szalinski, Wayne and Diane's kids. Oliveri commented that he was in awe about watching his stunt double do his stunts. He later starred as Kevin Boggs in Tim Burton's "Edward Scissorhands". O'Neill thought the film was a fun experience and that doing off-set activities, such as swimming or playing cards, was fun to do with the other younger cast members. She accepted the role because it was a "Disney movie."