Lady on a Train

While watching from her train window, Nikki Collins witnesses a murder in a nearby building. When she alerts the police, they think she has read one too many mystery novels. She then enlists a popular mystery writer to help her solve the crime on her own, but her sleuthing attracts the attentions of suitors and killers.

• 
  Charles David

• 
  Deanna Durbin
  Nikki Collins / Margo Martin
• 
  Ralph Bellamy
  Jonathan Waring
• 
  David Bruce
  Wayne Morgan
• 
  George Coulouris
  Mr. Saunders, Circus Club Manager
• 
  Allen Jenkins
  Danny (Waring chauffeur)
• 
  Dan Duryea
  Arnold Waring
• 
  Edward Everett Horton
  Mr. Haskell
• 
  Patricia Morison
  Joyce Willams, Morgan's Girl
• 
  Maria Palmer
  Margo Martin, Circus Club Singer
• 
  Elizabeth Patterson
  Aunt Charlotte Waring
• 
  Samuel S. Hinds
  Mr. Wiggam, Waring Lawyer
• 
  William Frawley
  Desk Sgt. Brennan
• 
  Jacqueline deWit
  Miss Fletcher, Morgan's Secretary
• 
  Lash LaRue
  Circus Club Waiter / Henchman
• 
  Jane Adams
  Circus Club Photographer
• 
  Thurston Hall
  Josiah Waring
• 
  Ben Carter
  Maxwell
• 
  Mabel Forrest
  Wife
• 
  Barbara Bates
  Hat Check Girl
• 
  Chester Clute
  Train Conductor (uncredited)