J. Marvin Campbell: J. Marvin Campbell. Actor: Quantum Leap. J. Marvin Campbell is known for Quantum Leap (1989), Ray Donovan (2013) and Justified (2010).
Known For: Quantum Leap (Sailor), Ray Donovan (Dr. Cooper), Justified (Forestry Agent Higgins), L.A. Noire (Ira Hogeboom)
