I Don't Want a Birthday Party/Knuffle Bunny

Peter Linz

Theo

Jennifer Barnhart

Cleo

Anthony Asbury

Lionel

Kathryn Mullen

Leona

Tyler Bunch

Dr. Nitwhite / Walter Pigeon

Ruth Westheimer

Dr. Ruth Wordheimer

Chris Phillips

Cliff Hanger (voice)

Fred Newman

Actor

Pam Arciero

Actor

David Matthew Feldman

Actor

Tim Lagasse

Arty Smartypants