Cast Credits L.A. Law (1986) Guest starring as Dwight Kroft Episode 8x15: Three on a Patch (Mar 17, 1994) Tales from the Darkside (1984) Guest starring as Jack Blaine Episode 1x02: I'll Give You a Million (Oct 7, 1984) Who's the Boss? (1984) Guest starring as Antonio Romano Episode 6x20: I Dream of Genealogy (Feb 20, 1990) Dynasty (1981) Guest starring as Chairman Willard Horton Episode 2x13: The Hearing (Feb 10, 1982) [Co-Star] Dallas (1978) Guest starring as Harv Smithfield (24 episodes) Episode 11x25: Never Say Never (Apr 1, 1988) Episode 10x27: The Dark at the End of the Tunnel (May 1, 1987) Episode 9x03: Those Eyes (Oct 4, 1985) Episode 9x02: Rock Bottom (Sep 27, 1985) Episode 9x01: The Family Ewing (Sep 27, 1985) Episode 7x06: Check and Mate (Nov 4, 1983) Episode 7x01: The Road Back (Sep 30, 1983) Episode 6x15: The Reckoning (Jan 14, 1983) Episode 6x13: Mama Dearest (Dec 31, 1982) Episode 6x07: Hit and Run (Nov 12, 1982) Episode 6x06: Aftermath (Nov 5, 1982) Episode 6x05: Jock's Will (Oct 29, 1982) Episode 6x03: Billion Dollar Question (Oct 15, 1982) Episode 6x02: Where There's a Will (Oct 8, 1982) Episode 5x15: Head of the Family (Jan 22, 1982) Episode 5x14: Denial (Jan 15, 1982) Episode 4x20: Ewing vs. Ewing (Apr 3, 1981) Episode 4x18: Mark of Cain (Mar 13, 1981) Episode 3x23: Jock's Trial (2) (Feb 29, 1980) Episode 3x17: Paternity Suit (Jan 11, 1980) Episode 3x11: The Heiress (Nov 23, 1979) Episode 3x04: Secrets (Oct 12, 1979) Episode 3x01: Whatever Happened to Baby John? (1) (Sep 21, 1979) Episode S14 Special: J.R. Returns (Nov 15, 1996) View 21 more View 21 less The Love Boat (1977) Guest starring as Dr. David Barnes Episode 2x12: Folks from Home/The Captain's Cup/Legal Eagle (Dec 2, 1978) [Co-Star] Black Sheep Squadron (1976) Guest starring as Commander Grayson Episode 1x12: The Cat's Whiskers (Dec 7, 1976) Petrocelli (1974) Guest starring as Morrie Ryder Episode 1x14: A Fallen Idol (Jan 22, 1975) [Co-Star] Guest starring as Mannie Episode 2x13: The Falling Star (Jan 21, 1976) [Co-Star] Maude (1972) Guest starring as Emcee Episode 5x04: Walter's Crisis (1) (Oct 11, 1976) Emergency! (1972) Guest starring as Dan Alden Episode S06 Special: Survival on Charter #220 (Mar 25, 1978) [Co-Star] Ironside (1967) Guest starring as Dr. Gregory Episode 4x21: The Riddle in Room Six (Feb 25, 1971) [Co-Star] Guest starring as Warden Charles Denny Episode 6x08: Buddy, Can You Spare a Life? (Nov 16, 1972) [Co-Star] Branded (1965) Guest starring as Hartley Episode 2x27: The Ghost of Murietta (Mar 20, 1966) The Munsters (1964) Guest starring as Professor Hansen Episode 2x25: Prehistoric Munster (Mar 10, 1966) The Addams Family (1964) Guest starring as Dr. Harold Black Episode 1x02: Morticia and the Psychiatrist (Sep 25, 1964) Guest starring as Dr. Jonley Episode 2x22: Happy Birthday, Grandma Frump (Feb 11, 1966)