Honey, We Shrunk Ourselves - Production - Casting

Casting

Rick Moranis is the only returning cast member from the original films. He returns to portray “nutty” inventor Wayne Szalinski, now the head of Szalinski Labs. Marcia Strassman, who portrayed his wife Diane in the first two films and in the 3D film would not reprise her role anymore. Eve Gordon, who was best known as Marilyn Monroe in A Woman Named Jackie, was cast as Diane instead.

Their onscreen kids, Amy O'Neill and Robert Oliveri, had quit acting by the time the film was released and their characters were only mentioned in a conversation between Diane and Adam. Joshua and Daniel Shalikar, who portrayed Adam in Honey, I Blew Up the Kid, had signed on for two additional sequels in 1992. They had reprised their role in Honey, I Shrunk the Audience, but were recast by Bug Hall, known as Alfalfa in The Little Rascals.

Stuart Pankin and Robin Bartlett were cast as Gordon and Patti Szalinski, Wayne's brother and sister-in-law. Allison Mack and Jake Richardson were cast as their children, Jenny and Mitch Szalinski. Mack would later become famous as Chloe Sullivan on Smallville. Two of Jenny's friends in the film are portrayed by Mila Kunis and Lisa Wilhoit. Kunis would later portray Jackie Burkhart on That '70s Show, while she would portray Meg Griffin and Wilhoit would later portray Connie D'Amico on Fox's Family Guy.