John Karlen (born John Adam Karlewicz) was an American character actor who played multiple roles (Willie Loomis, Carl Collins, William H. Loomis, Desmond Collins, Alex Jenkins, and Kendrick Young) on the ABC serial Dark Shadows, in various episodes which aired from 1966 to 1971. Karlen also played Harvey Lacey, husband of Mary Beth Lacey (played by Tyne Daly), on the CBS crime series Cagney & Lacey (1982–88).
Frankenstein
(Otto Roget)
Surf Ninjas
(Mac)
MacShayne: Winner Takes All
(Waldo Church)
Impulse
(Bob Russell)
Trilogy of Terror
(Thomas Amman)
Daughters of Darkness
(Stefan Chilton)
Pennies from Heaven
(The Detective)
Racing with the Moon
(Mr. Nash)
Killer's Delight
(Danny)
House of Dark Shadows
(Willie Loomis)
Night of Dark Shadows
(Alex Jenkins)
Perry Mason: The Case of the Glass Coffin
(Jake Morrison)
Night of Terror
(Manning)
Downpayment on Murder
(Albert)
Calendar Girl, Cop, Killer? The Bambi Bembenek Story
(John Garner)
The Return of Mickey Spillane's Mike Hammer
(Chapel)
A Small Town in Texas
(Lenny)
The Cover Girl and the Cop
(Lieutenant Wingo)
Cagney & Lacey: The View Through the Glass Ceiling
(Harvey Lacey)
Delancey Street: The Crisis Within
(Richard Copell)
Nightmare at 43 Hillcrest
Welcome Home, Bobby
(Geffin)
Native Son
(Max)
Melvin Purvis G-Man
('Tony' Anthony Redecci)
The Invasion of Carol Enders
(David Hastings)
Rosie: The Rosemary Clooney Story
(Uncle George)
American Dream
(Coach Ritter)
Date Rape
(Joe Farrell)
Hostage Flight
(DiSalvo)
The Kansas City Massacre
(Sam Cowley)
Nightmare on the 13th Floor
(Sgt. Madden)
The Picture of Dorian Gray
(Alan Campbell)
Daddy
(Mike Burnette)
Express to Terror
(Quinn)
The Return of Mod Squad
(Marty)
The Cloning of Clifford Swimmer
The Long Days of Summer
(Duane Haley)
The Last Ride of the Dalton Gang
(Charlie Powers)
Roseanne: An Unauthorized Biography
(Jerry Barr)
Police Story: Burnout
(Capt. Harrison)
Master of Dark Shadows
(Self)
Babycakes
(Al)
Without Warning: Terror in the Towers
(Jack McAllister)
Cagney & Lacey: The Return
(Harvey Lacey)
Cagney & Lacey: Together Again
(Harvey Lacey)
Cagney & Lacey: True Convictions
(Harvey Lacey)
Colorado C.I.
(Kessler)
Shirts/Skins
(Herbie Bush)
Lou Grant
Murder, She Wrote
(Lt. Martin McGinn)
The Gallant Men
Trapper John, M.D.
Starsky & Hutch
Fame
Hawaii Five-O
(Harris)
All in the Family
(Leo)
227
Quincy, M.E.
The Streets of San Francisco
Kaz
Naked City
(Chuck)
Charlie's Angels
(Leonard Chaffey)
Hill Street Blues
Mannix
Dark Shadows
(Willie Loomis)
The Hardy Boys / Nancy Drew Mysteries
Kojak
(Pinky)
Hallmark Hall of Fame
(Ned)
Weekend Special
Vega$
Police Story
Sword of Justice
Snoops
(Sam Akers)
The Sixth Sense
The Detectives
ABC Afterschool Special
(Joe Farrell)
Joe Forrester
The Magician
(Jim Russell)
Mad About You
(Gus Stemple)
Murder, She Wrote
(Patrick MacNair)
Murder, She Wrote
(Superintendent Arthur Joyce)
Stoney Burke
(Mickey)
American Playhouse
(Reverend Walker)
Kojak
(Hicks)
Barnaby Jones
(Johnny Alban)
In a Child's Name
(Joe Silvano)
The Mod Squad
(Johnny Wexford)
The Rockford Files
(Leo)
Finder of Lost Loves
(Arthur Barwell)
Hunter
(Power plant worker)
Cagney & Lacey
(Harvey Lacey)
Doc Elliot
(Vincent Parker)
The Waltons
(Rev. Ezekiel L. Henshaw)
Quincy, M.E.
(Agent Brice)