John Whitin Lasell Jr. (November 6, 1928 - October 4, 2024) was an American film and television actor, known for playing vampire hunter Dr. Peter Guthrie in the American soap opera television series Dark Shadows.
Topaz
(State Department Official (uncredited))
The Psychiatrist: God Bless the Children
(Maxwell)
Fear on Trial
A Great American Tragedy
Dan August: Once Is Never Enough
(Wedlock)
Suppose They Gave a War and Nobody Came?
(Dr. Hillery)
The Harness
(Minister)
Honky
(Archer Divine)
Message to My Daughter
(Doctor)
Lassie: Joyous Sound
(Dr. Robbins)
Deathmaster
(Sgt. Kelly)
The Organization
(Zach Mills)
The Fugitive
(Michael Pryor)
The Rogues
(George)
The Fugitive
(Frank Pettie)
The Fugitive
(Cramer)
The Fugitive
(Mr. Lee)
The Twilight Zone
(Jonathan Wellington)
Gunsmoke
(Tucker)
Hong Kong
(Roger Dalman)
Perry Mason
(Danny Shine)
Perry Mason
(Dean Franklin)
Dan August
(Ben Wedlock)
Night Gallery
(Colonel Hawes)
Perry Mason
(Charlie Corby)
The Invaders
(Bob Ferrara)
Adam-12
(Tom Stark)
Falcon Crest
(Sam)
The Tall Man
(Ben Jardine)
The F.B.I.
(Murray Dalton)
The Investigators
The Streets of San Francisco
(Clark)
Barnaby Jones
(Mr. Smith)
Dan August
(Benjamin Wedlock)
The Mod Squad
(Clinton Farragut)
Mannix
(Richard Averill)
Mission: Impossible
(Winston Walding)
The F.B.I.
(Captain Reedley)
The F.B.I.
(Roland)
The F.B.I.
(Jerry Stevens)
The F.B.I.
(Owen Singer)
The F.B.I.
(Ed Wells)
Flipper
(Dr. Rothwell)
12 O'Clock High
(Col. Peter Thom)
My Favorite Martian
(Mr. Morgan)
87th Precinct
(Ted Boone)
Hazel
(Officer Dietrich)
Route 66
(Dan)
Rawhide
(Capt. Wayly)
Hawaiian Eye
(Alan Niles)
One Step Beyond
(John Perkins)
Naked City
(Sheldon)
Lassie
(Dr. Robbins)
General Electric Theater
(Dr. Ames)