Sherlock Jr.

A film projectionist longs to be a detective, and puts his meager skills to work when he is framed by a rival for stealing his girlfriend's father's pocketwatch.

• 
  Buster Keaton
• 
  Walter C. Reed

• 
  Buster Keaton
  Projectionist / Sherlock, Jr.
• 
  Kathryn McGuire
  Girl
• 
  Joe Keaton
  Girl's Father / Man on Film Screen
• 
  Erwin Connelly
  Hired Man / Butler
• 
  Ward Crane
  Sheik / Villain
• 
  Doris Deane
  Girl Who Loses Dollar Outside Cinema (uncredited)
• 
  Christine Francis
  Candy Store Girl (uncredited)
• 
  George Davis
  Conspirator (uncredited)
• 
  Kewpie Morgan
  Conspirator (uncredited)
• 
  Steve Murphy
  Conspirator (uncredited)
• 
  John Patrick
  Conspirator (uncredited)
• 
  Betsy Ann Hisle
  Little Girl (uncredited)
• 
  Ford West
  Theatre Manager / Gillette (uncredited)
• 
  Jane Connelly
  The Mother (uncredited)