In the original Broadway cast, they were puppeteered by Jennifer Barnhart and Rick Lyon. Throughout the Broadway production, various performers have swapped out the role of Boy Bear, seeing as Barnhart remained until the closing. These actors include Christian Anderson, Rob McClure, and others. Off Broadway, the roles of Girl Bear have been played by Maggie Lakis, Jennifer Barnhart, Becca Ayers, and Ruthie Ann Miles. Boy Bear has been played by Cullen R. Titmas and Rob Morrison.
| Princeton | Kate Monster | Rod | Nicky | Gary Coleman | Brian | Christmas Eve|
Lucy the Slut | Trekkie Monster | Bad Idea Bears | Mrs. Thistletwat | Ricky