Samuel was born in Hamilton, Victoria, the son of Maree and Clifford Samuel. He grew up in Adelaide, South Australia and graduated from Rostrevor College in 2001. He has a younger brother, Benedict, a writer, producer and actor, as well as an older sister, Bridget, a stage manager. Despite completing his senior secondary years at Rostrevor College, Samuel undertook final year drama at Christian Brothers College under the tutelage of Amanda Portus, where he played the part of Tom Snout (the wall) in Rostrevor College's production of Shakespear…