Nicholas uses his imagination to explore the world around him with a cast of cuddly characters.
| Actor | Role |
|---|---|
| LLance PatonNicholas Knock | Nicholas Knock |
| AAlanna BudhooMonica | Monica |
 Heath LambertsMr. Hoobody | Mr. Hoobody |
 Kate TrotterTeacher | Teacher |
| RRob MillsBigfoot and Egg | Bigfoot and Egg |
| FFrank MeschkuleitMcGonigle | McGonigle |
| JJani LauzonHannah V. Varoom | Hannah V. Varoom |
 Howard JeromeGrandpa | Grandpa |
| GGina ClaytonMother | Mother |
| TTara AlexisJudy | Judy |
| AAnthony Nicholas AntonacciErin | Erin |
| TTheresa SearsPoems Read By (voice) | Poems Read By (voice) |
| SStephen OuimettePoems Read By (voice) | Poems Read By (voice) |