• 
  Penn Jillette

  Walt
• 
  Joan Mullaney

  Older Edie
• 
  Sean Muramatsu

  Hisato
• 
  Michael Felix

  Alexander
• 
  Brenna Daly

  Willa
• 
  Megan Murphy

  Edie
• 
  Leah M. Clark

  Robin
• 
  Nailya Shakirova

  Tiny

• 
  Melanie McComb

  Jessica
• 
  Luke Shelton

  Kurt
• 
  Logan Martin

  Lucky
• 
  Rory Gibson

  Billy (as Roderick Gibson)
• 
  Emily Shenaut

  Dr. Debbie
• 
  Shane Carpenter

  The Boy
• 
  Avi Love

  Adult Mia

• 
  Ampersand Danger Man

  Baby Mia
• 
  Brenda Daly

  Older Willa
• 
  Sandra J. Hughes

  Even Older Willa
• 
  Kyle Butenhoff

  Walt
• 
  Hillier Kelly Donnelly

  Young Kurt