William Kreutzmann Jr. is an American drummer. He played with the Grateful Dead for its entire thirty-year career, usually alongside fellow drummer Mickey Hart, and has continued to perform with former members of the Grateful Dead in various lineups, and with his own bands BK3, 7 Walkers and Billy & the Kids.

• Grateful Dead: The Grateful Dead Movie (1977)

  
• Long Strange Trip (2017)

  
• Have a Good Trip: Adventures in Psychedelics (2020)