| Roger Delli-Bovi | | David Carney |
| Polly (Tadpole) | | Samantha Flahive |
| Richard, the nice nurse | | Ian Flynn |
| Mimi Schwinn, the mother | | Jocelyn Hesse |
| Young Gordon/Tad (Tadpole) | | Charlie Imhoff |
| Waitress/Nancy D, the thin nurse | | Diana Jelmini |
| The Minister | | Steven Kosakow |
| Gordon Michael Schwinn | | Michael Kripchak |
| Homeless Lady | | Katie Pickett |
| Dr. Jafar Berensteiner | | Brian D. Wagner |
Orchestra
| Percussion | | Jeremy Lang, Jeremy Nimmer |
| Flute | | Sarah Caissie Provost, Mana Washio |
| Cello | | Jonah Sacks, Paul Glenn |
Production Staff
| Executive Producer | | P. K. Newby |
| Production Manager | | Vilas Sridharan |
| Stage Manager | | Kaitlyn Chantry |
| Assistant Production Managers | | Rena Schrier, Nicki Snodgrass |
| Assistant Music Director | | David Zych |
| Rehearsal Pianist | | Karin Denison |
| Assistant Choreographer | | Amanda Ventura |
| Assistant Stage Manager | | Kristie Froman |
| Technical Director | | Martin Kemp |
| Set Designer | | Stephen Larrett |
| Lighting Designer | | Brandon Thrasher |
| Props Designer | | Heather Goff |
| Sound Designer | | Ben Markham |
| Animation Designer | | David Powell |
| Costume Designer | | Milena Buls |
| Bungee and Tadpole Costumes | | Susan Paino |
| Costume Assistant | | Amy Bates |
| Master Electrician | | Ricky Morse |
| Electricians | | Paul Mattal, John Randell, Steven Schwartzberg |
| Spotlight Operator | | AB Commendatore |
| Light Board Operator | | Siva Sivananthan |
| Sound Board Operator | | Joel Hersh |
| Stage Crew | | Carla Hochreiter, Ashley Tyler |
| Set Construction | | Emmanuel Andrade, Karin Denison, Carla Hochreiter |
| | Stephen Larrett, Marc S. Miller, Dan Moore |
| | Katie Pickett, Milan Raj, John Randell |
| | Robert Silva, Ryan Shawgo, Curtis Wright |
| Graphic Designer | | Daniel J. Rabone |
| Playbill Designer | | Marc S. Miller |
