Monk

Monk - Karl guest stars on Monk in its final season, as Xavier Danko, in "Monk goes to group therapy". When Monk's insurance will no longer cover one-on-one therapy, he reluctantly attends group therapy and one-by-one the patients are being killed off. Monk investigates and finds that a former patient who is no longer with the group, Xavier Danko, (Karl Makinen) is the one killing off the patients because they are the only people who could connect him to a woman he recently killed.