In alphabetical order
Leanne Ashley as Dorothy the Dinosaur
Madge Blake as Aunt Harriet
Jeremy Clyde as himself
Murray Cook as himself
Patty Duke as Patty and Cathy
Jeff Fatt as himself
Carolyn Ferrie as Flora Door and Dorothy's voice
Anthony Field as himself
Frank Gorshin as the Riddler
Andy Griffith as Sheriff Andy Taylor
Neil Hamilton as Commissioner Gordon
Lord Tim Hudson as himself
Don Knotts as Deputy Barney Fife
Deric McCabe as Charles Wallace
me as Sam
Burgess Meredith as the Penguin
Lee Meriwether as Catwoman
Levi Miller as Calvin
Maia Mitchell as her cameo (in the "Silver Screen" scene)
Jim Nabors as Gomer Pyle
Alan Napier as Alfred
J. Pat O'Malley as himself
Greg Page as himself
Missy Peregrym as Andy McNally
Storm Reid as Meg
Stafford Repp as Chief O'Hara
Cesar Romero as the Joker
Chad Stuart as himself
Burt Ward as Robin
Adam West as Batman
Digby Wolfe as himself
