Rohner starred on the TV series Murder One as Detective Vince Biggio from 1996 to 1997. His television guest appearances include Miami Vice, Star Trek: The Next Generation as Admiral Mark Jameson in the season 1 episode "Too Short a Season", Beverly Hills, 90210, Charmed, Crossing Jordan, Angel, and Weeds. He also appeared in the award-winning series Into the West and The X-Files (season 6, episode 8). He also appeared in the TV role of Jared Pryor in the short-lived ABC midseason replacement Day Break.