Cast & crew
Leonardo, the Terrible Monster (2007)
Directed by Pete List Written by Mo Willems
Cast
| Mo Willems | Leonardo (voice) |
| Joey Stack | Sam (voice) |
Crew
| Mo Willems | Writer |
| Pete List | Animation |
| Pete List | Director |
| Mo Willems | Producer |
| David Bramfitt | Music |
| Mo Willems | Animation |
| Paul R. Gagne | Producer |
| Joel Goodman | Music |