由杰夫·高布伦所饰演的NASA历史学家将与《阿波罗13号》导演朗·霍华德一道，以阴谋论风格的诙谐视角试图揭开被NASA尘封半世纪的终极谜团：史努比曾经是阿波罗10号发射任务的机密航天员吗？
Jeff Goldblum
Self
Ron Howard
Ginger Kerrick
Wes Chesser
Gene Cernan
Sean Cullen
Peppy Announcer (voice)
Terry McGurrin
Snoopy (voice)
Ethan Pugiotto
Charlie Brown (voice)
Wyatt White
Linus (voice)
Isabella Leo
Lucy (voice)
Charles M. Schulz
Self (archive footage)
