Clark Allen is a character in the forty-sixth Goosebumps book, How to Kill a Monster, and its accompanying television adaptation. He is the stepbrother of Gretchen Allen.read more
Clark Boretski has been suggested to play 4 roles. Click below to see other actors suggested for each role, and vote for who you think would play the role best.
Clark Allen is a character in the forty-sixth Goosebumps book, How to Kill a Monster, and its accompanying television adaptation. He is the stepbrother of Gretchen Allen.
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