Dr. Harrison
Jack Baggot
Billy Warren
Detective Pearson
Jim Spencer
Chilton's Partner
Bob Bates
The Detective's Assistant
Leader of the Road Agents
Dick Benton
Superintendent Purdy
The Son of the President of the Railroad
The Road Superintendent
Johnson's Assistant
The Wireless Operator
Gordon
Tom Ransom
Hume - the Fireman
Blake's Son
1st Conspirator
The Construction Superintendent
Gentleman Joe
Bob - the Foreman
Dick Benton - the Young Engineer
Superintendent Melvin
Dick Benton - the Express Messenger
Paymaster Benton
The Lineman
Arthur Lane
Dick Benton - Lineman
The Express Messenger
The Night Operator
Bert Morgan
Clayton
Tom Arnold (as P.S.Pembroke)
Chester Noble (as P.L. Pembroke)
Donald Peyton