Sean Cassidy become an interpol detective to enforce internation al law. Even if he knows about his mutant powers, he hides it even on his interpol service.After serving intelpol he decided to left the service and engaged to some criminal activities and even joined the criminal group Factor Three to fight the X-Men.Source here
image sourceAfter some couple of encounters with the X-Men he left Factor Three and joined Professor Xavier's X-Men where he become of the the core members of the X-Men. He has the ability of Acoustikinesis which will create a powerful sonic waves with his voice.He can use those sonic waves to fly and sometimes serve as destructive sonic scream.Source here
| Power Statistic | Level |
|---|---|
| Intelligence | 3 |
| Strength | 2 |
| Speed | 4 |
| Durability | 3 |
| Energy Projection | 5 |
| Fighting Skills | 4 |