Tom Mix, in mufti rather than his traditional western garb, plays a young man who is convinced he has taken a slow-acting poison.
| Actor | Role |
|---|---|
 Tom MixDwight Locke | Dwight Locke |
 Eva NovakJane Norworth | Jane Norworth |
 William BuckleyMilton Norworth | Milton Norworth |
 Sid JordanVelvet Joe | Velvet Joe |
| EElsie DanbricPrincess Sonia | Princess Sonia |
| WWynn MacePrince Albert | Prince Albert |