Kevin Patrick Dobson (born March 18, 1943) is an American film and television actor of Irish descent, who is primarily known for his roles on television. His most prominent roles were as Lt. Theo Kojak's (played by Telly Savalas) trusted partner, Det. Bobby Crocker on the popular 1970s TV crime drama Kojak, and as Karen MacKenzie's (played by Michele Lee) second husband, M. Patrick "Mack" MacKenzie, on the popular 1980s soap opera Knots Landing - a role he played from 1982 until the series' end in 1993. Dobson premiered on the daytime soap opera Days of our Lives as Mickey Horton on April 1, 2008..