Vincent Kartheiser (Kartheiser) is an American actor, best known for his role in Mad Men and Connor in the WB TV series Angel. Kartheiser made his screen debut with a bit role in the 1993 film Untamed Heart and twice won Screen Actors Guild award for Outstanding Performance by an Ensemble in a Drama Series Mad Men. Some of Kartheiser's other credits include Alpha Dog, Rango and In Time.