Suggestions by @castingsinmyblood
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Alexander Corvinus
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Tawky Tawny
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Juror #2 (12 Angry Men)
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Perry White
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Gilbert Gottfried
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Martha Kent
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The Cat in the Hat (character)
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Senator Robert Kelly
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Junius Brutus (Shakespeare)
as Ray Fisher in What if this actor played
The Kurgan (Highlander)
as Karl Urban in What if this actor played
Jochebed
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Wolfsbane
as Valorie Curry in What if this actor played
Catherine Zeta-Jones
as 1990's in Actresses who could be or could have been Dale Arden
Luca Brasi
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Captain Jack Sparrow
as Eli Wallach in What if this actor played