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).
Movies
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
Shows
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
