- as Dr. Daniel Pierce
- as Jerry Brockner
- as Kate Moretti
- as Ellen Resnick
- as Max Lewicki
- as A. Z. Weyland
- as Barbara Bruckner
- as Natalie Vincent/Dr. Caroline Newsome
- as Donnie Ryan
- as Imaginary Fanboy
- as Preston Resnick
- as FBI Agent Dalton
- as Doctor
- as Donny's Grandmother
- as Donnie Ryan
- as Princess Leia
- as Fangirl
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