Carnival is episode 18 of Season 2 of Growing Pains.
- Patrika Darbo as Judy Jones
- Dawn Wells as Myrtle Deforest
- Julie Cobb as Gracie Thornton
- Mya Stark as Heidi Deforest
- Mary Farrell as Gail
- Bill McLean as Earl
- Patricia Rees as Clarabelle
- Janet Clark as Female Bidder
- Joe Duquette as Man with Moose Head
- When Heidi is asked who her mom is, she reply's "the one that looks like Maryann from Gilligan's Island". The actress who is portraying Myrtle, did play Maryann on Gilligan's Island.