Dillon Francis Casey is an American-Canadian actor. He is best known for his role as Sean Pierce in The CW's action-thriller television series Nikita.

The third season of the American television series Agents of S.H.I.E.L.D., based on the Marvel Comics organization S.H.I.E.L.D., follows Phil Coulson and his team of S.H.I.E.L.D. agents and Inhumans a