It's A Mystery, Charlie Brown
| Category | Short Film |
| Genre | Animation |
| Country | United States |
| Premiere | 1974-02-01 |
| Broadcaster | CBS |
| Creator | Charles M. Schulz |
| Director | Phil Roman |
| In Cooperation With | United Feature Syndicate (UFS), Charles M. Schulz Creative Associates |
| Production Company | Lee Mendelson Film Productions, Bill Melendez Productions |
| Voice Actor | Todd Barbee (as Charlie Brown), Melanie Kohn (as Lucy van Pelt), Stephen Shea (as Linus van Pelt), Donna Le Tourneau (as Patricia "Peppermint Patty" Reichardt (credited as Donna Forman)), Jimmy Ahrens (as Marcie (credited as James Ahrens)), Lynn Mortensen (as Sally Brown), Tom Muller (as Pig Pen (credited as Thomas A. Muller)), Bill Melendez (as Snoopy/Woodstock (uncredited)) |
| Links | https://www.imdb.com/title/tt0071678/?ref_=nv_sr_srsg_0 |