The Phantom Robber gets a fortune in jewels and some valuable papers from a robbery on the crack train "The Midnight Limited" and Val Lennon and his pretty assistant, Joan Marshall, are on his trail. But the Phantom strikes three more times and adds murder to his list. Val decides to use himself as bait, although Chief Harrigan and Joan beg him not to risk his life. But Val, disguised as a wealthy Canadian, boards the train for a rendezvous with a killer.
| Actor | Role |
|---|---|
 John 'Dusty' KingVal Lennon | Val Lennon |
 Marjorie ReynoldsJoan Marshall | Joan Marshall |
 George ClevelandProfessor Van Dillon | Professor Van Dillon |
 Edward KeaneCaptain Harrigan | Captain Harrigan |
 Monte CollinsAbel Krantz | Abel Krantz |
 I. Stanford JolleyFrenchie | Frenchie |
 Pat FlahertyTrain Conductor | Train Conductor |
| HHerbert AshleyTrainman | Trainman |
 Lita ChevretMae Krantz | Mae Krantz |
 Ray BennettJake Pringle (Uncredited) | Jake Pringle (Uncredited) |
 Joe CaitsDetective Conway (Uncredited) | Detective Conway (Uncredited) |
 Lane ChandlerInspector in Montreal (Uncredited) | Inspector in Montreal (Uncredited) |
 Frank HagneyDetective Joe O'Neill (Uncredited) | Detective Joe O'Neill (Uncredited) |
| WWarren JacksonJoe, Hotel Desk Clerk (Uncredited) | Joe, Hotel Desk Clerk (Uncredited) |
 Wilbur MackMr. Gellard (Uncredited) | Mr. Gellard (Uncredited) |
 Ray TurnerJohn, Train Porter (Uncredited) | John, Train Porter (Uncredited) |
| BBuck WoodsWilly, Train Porter (Uncredited) | Willy, Train Porter (Uncredited) |