Adam Nelson's acting talents were showcased on the big screen many times throughout the course of his Hollywood career. Nelson began his acting career in film, appearing in such titles as "The Seventh Sign" (1988), the action flick "The Abyss" (1989) with Ed Harris and the David Morse drama "The Indian Runner" (1991). He also appeared in the TV movie "O Pioneers!" (CBS, 1991-92). He worked in television in his early acting career as well, including parts on "Quantum Leap" (NBC, 1988-1993) and "Diagnosis Murder" (CBS, 1993-2001). He kept working in film throughout the nineties and the early 2000s, starring in the Susan Sarandon dramatic adaptation "Dead Man Walking" (1995), "Phantoms" (1998) with Peter O'Toole and "Home Sweet Hoboken" (2000). He also worked in television around this time, including a part on "CSI: Crime Scene Investigation" (CBS, 2000-2015). Recently, he continued to act in the dramatic adaptation "Mystic River" (2003) with Sean Penn, the drama "Broken" (2007) with Heather Graham and the dramatic adaptation "Appaloosa" (2008) with Ed Harris. He held additional roles in television including a part on "Criminal Minds" (CBS, 2005-). Most recently, Nelson acted in the action movie "Run All Night" (2015) with Liam Neeson.