 On television, he portrayed Montgomery Clift in "" and Ricky Nelson in "", had a regular role on the Showtime series "Beggars and Choosers", was featured in the television movies "Doing Time on Maple Drive" and "Wildflower" (CableACE Award nomination), and appeared in "NYPD Blue" and "", among other television series.McNamara is an animal rights activist and vegan.He got his start rescuing cats, dogs, and horses, and now travels the world advocating animal rights.