Sebastian Thommen is from Cork, Ireland. His father is Swiss. Sebastian started acting in 2004. He studied Theatre Performance in Cork, Clowning in Barcelona and Acting For Film in Los Angeles. While pursuing the craft of acting in film and theatre he trained as a Windsurfing and White Water Kayaking Instructor, a Lifeguard and worked as a Fire Fighter until landing his most prestigious acting role yet as Michael Collins in RTE’s 5 part TV drama, ‘Rebellion’.