Arthur Loomis
Petey Loomis
Harold Sylvester
Chester 'Chet' Loomis
Porsche 'Rocky' Sylvester
Helen Loomis
Lovey Sylvester
Mrs. Crotty
Sue Foster
Ben
Party Guest (uncredited)
Waiter (uncredited)
Waitress (uncredited)
Two young brothers secretly bring home a seal from their summer vacation and try to hide it from Mom and Dad. Havoc ensues as Sammy's antics disrupt the quiet town of Gatesville and its unsuspecting residents.
