HBO Storybook Musicals (TV Series)
Earthday Birthday (1990)
Full Cast & Crew
Cast (in credits order)
| Christopher Reeve | ... | It Zwibble (voice) | |
| Lainie Kazan | ... | (voice) | |
| Fred Gwynne | ... | Fred the Moose (voice) | |
 |
Jonathan Goch | ... | (voice) |
| Jonathan Gold | ... | (voice) | |
| Meghan Andrews | ... | (voice) | |
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Gina Marie Huaman | ... | (voice) |
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Larry White | ... | (voice) |
| John Canemaker | ... | (voice) | |
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Gregory Perler | ... | (voice) |
