Mark Clem

Mark Clem. Producer: War Grooms. Mark Clem's first acting experience came as a result of his three older sister's desire to perform. When he was five, the four siblings would often sing a Capella hymns for family and friends. Throughout his childhood, he and his sisters would sing with the TV, radio, and the family's sizeable collection of records and 8-track tapes. His father, a former disc jockey, had a collection...