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René Auberjonois as Stranger (voice) |
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Michael Bell as (voice) |
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Lucille Bliss as Smurfette (voice) |
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William Callaway as (voice) |
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Hamilton Camp as (voice) |
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June Foray as (voice) |
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Danny Goldman as Brainy Smurf (voice) |
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David Mendenhall as William (voice) |
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Don Messick as Papa Smurf / Azrael the Cat (voice) |
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Alan Oppenheimer as (voice) |
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Henry Polic II as (voice) |
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Alexandra Stoddart as Gwenevere (voice) |
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Paul Winchell as Gargamel (voice) |
| Writing | Peyo | Story |
| Writing | Yvan Delporte | Story |
| Writing | Len Janson | Teleplay |
| Production | Gerard Baldwin | Producer |
| Sound | Hoyt Curtin | Original Music Composer |
| Production | Joseph Barbera | Executive Producer |
| Directing | Gerard Baldwin | Director |
| Writing | Gerard Baldwin | Story |
| Writing | Chuck Menville | Teleplay |
| Editing | Gil Iverson | Editor |
| Production | William Hanna | Executive Producer |
| Writing | Peyo | Characters |
| Writing | Peyo | Comic Book |
