It's a Mystery, Charlie Brown (1974)

Elenco

• 

  Todd Barbee

  Charlie Brown

• 

  Melanie Kohn

  Lucy

• 

  Stephen Shea

  Linus

• 

  Donna Le Tourneau

  Peppermint Patty

• 

  Jimmy Ahrens

  Marcie

• 

  Lynn Mortensen

  Sally

• 

  Tom Muller

  Pig Pen

• 

  Bill Melendez

  Snoopy/Woodstock (voice) (uncredited)