A pacifist gambler turns spy and gives his father's gas factory plans to the enemy.
| Actor | Role |
|---|---|
 Pauline FrederickMumsie | Mumsie |
 Nelson KeysSpud Murphy | Spud Murphy |
 Herbert MarshallCol. Armytage | Col. Armytage |
 Frank StanmoreNobby Clarke | Nobby Clarke |
| DDonald MacardleNoel Symonds | Noel Symonds |
| IIrene RussellLouise Symonds | Louise Symonds |
| RRolf LeslieEdgar Symonds | Edgar Symonds |
| AArthur BarryCarl Kessler | Carl Kessler |
| FFrank PerfittMajor Bowen | Major Bowen |
| PPatrick SusandsNot listed | Not listed |
| TTom CoventryNot listed | Not listed |
 Chili BouchierNot listed | Not listed |