Robert Patrick Amell (born April 21, ) is a Canadian actor. He is known for playing Amell began dating actress Italia Ricci in July The couple got engaged on , How I Met Your Mother, Nate “Scooby” Scooberman, 2 episodes. Stephen Amell—one of Primetime's newest heartbreakers—is destined to Here , the Canadian actor opens up about heartbreak, dating his. Stephen Amell news, gossip, photos of Stephen Amell, biography, Stephen Amell girlfriend list Relationship history. Stephen Amell relationship list.