Editing David Janssen (section)

==Selected filmography==
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* ''[[It's a Pleasure (film)|It's a Pleasure]]'' (1945) as Davey / Boy Referee (uncredited)
* ''[[Swamp Fire]]'' (1946) as Emile's Eldest Son (uncredited)
* ''[[No Room for the Groom]]'' (1952) as Soldier (scenes deleted)
* ''[[Francis Goes to West Point]]'' (1952) as Corporal Thomas
* ''[[Untamed Frontier]]'' (1952) as Lottie's Dance Partner (uncredited)
* ''[[Bonzo Goes to College]]'' (1952) as Jack (uncredited)
* ''[[Yankee Buccaneer]]'' (1952) as Beckett
* ''[[Back at the Front]]'' (1952) as Soldier (uncredited)
* ''Leave It to Harry'' (1954) as Quiz Show Host (short subject)
* ''[[Chief Crazy Horse (film)|Chief Crazy Horse]]'' (1955) as Lieutenant Colin Cartwright
* ''[[Cult of the Cobra]]'' (1955) as Rico Nardi
* ''[[Francis in the Navy]]'' (1955) as Lieutenant Anders
* ''[[The Private War of Major Benson]]'' (1955) as Young Lieutenant
* ''[[To Hell and Back (film)|To Hell and Back]]'' (1955) as Lieutenant Lee
* ''[[All That Heaven Allows]]'' (1955) as Freddie Norton (uncredited)
* ''[[The Square Jungle]]'' (1955) as Jack Lindsay
* ''[[Never Say Goodbye (1956 film)|Never Say Goodbye]]'' (1956) as Dave Heller
* ''[[The Toy Tiger]]'' (1956) as Larry Tripps
* ''[[Francis in the Haunted House]]'' (1956) as Police Lieutenant Hopkins
* ''[[Away All Boats]]'' (1956) as Talker (uncredited)
* ''Mr. Black Magic'' (1956) as Master of Ceremonies (short subject)
* ''[[Showdown at Abilene]]'' (1956) as Verne Ward
* ''[[The Girl He Left Behind]]'' (1956) as Captain Genaro
* ''[[Lafayette Escadrille (film)|Lafayette Escadrille]]'' (1958) as Duke Sinclair
* ''[[Hell to Eternity]]'' (1960) as Sergeant Bill Hazen
* ''Dondi'' (1961) as Dealey
* ''[[The Big Bankroll|King of the Roaring 20s – The Story of Arnold Rothstein]]'' (1961) as Arnold Rothstein
* ''[[Ring of Fire (1961 film)|Ring of Fire]]'' (1961) as Sergeant Steve Walsh
* ''[[Twenty Plus Two]]'' (1961) as Tom Alder
* ''[[Man-Trap]]'' (1961) as Vince Biskay
* ''[[My Six Loves]]'' (1963) as Marty Bliss
* ''[[Warning Shot (1967 film)|Warning Shot]]'' (1967) as Sergeant Tom Valens
* ''[[The Green Berets (film)|The Green Berets]]'' (1968) as George Beckworth
* ''[[The Shoes of the Fisherman (movie)|The Shoes of the Fisherman]]'' (1968) as George Faber
* ''[[Where It's At (film)|Where It's At]]'' (1969) as A.C.
* ''[[Marooned (1969 film)|Marooned]]'' (1969) as Ted Dougherty
* ''[[Generation (film)|Generation]]'' (1969) as Jim Bolton
* ''[[Macho Callahan]]'' (1970) as Diego Callahan
* ''[[Once Is Not Enough (film)|Once Is Not Enough]]'' (1975) as Tom Colt
* ''[[The Swiss Conspiracy]]'' (1976) as David Christopher
* ''[[Two-Minute Warning]]'' (1976) as Steve
* ''[[Warhead (film)|Warhead]]'' (1977) as Tony Stevens
* ''[[Golden Rendezvous]]'' (1977) as Charles Conway
* ''[[Covert Action (1978 film)|Covert Action]]'' (1978) as Lester Horton
* ''[[Inchon (film)|Inchon]]'' (1981) as David Feld (scenes deleted after premiere; final film role; filmed in 1979; released posthumously)
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===Television films===
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* ''Belle Sommers'' (1962) as Danny Castle
* ''Night Chase'' (1970) as Adrian Vico
* ''[[The Longest Night (1972 film)|The Longest Night]]'' (1972) as Alan Chambers
* ''[[Moon of the Wolf]]'' (1972) as Sheriff Aaron Whitaker
* ''[[Hijack (1973 film)|Hijack]]'' (1973) as Jake Wilkenson
* ''[[Birds of Prey (1973 film)|Birds of Prey]]'' (1973) as Harry Walker
* ''[[Harry O|Harry O – Such Dust As Dreams Are Made On]]'' (1973) as Harry Orwell
* ''Pioneer Woman'' (1973) as Robert Douglas
* ''[[Harry O|Harry O – Smile Jenny, You're Dead]]'' (1974) as Harry Orwell
* ''Don't Call the Police'' (1974) as Harry Orwell
* ''Fer-de-Lance'' (1974) as Russ Bogan
* ''[[Stalk the Wild Child]]'' (1976) as Dr. James Hazard
* ''[[Mayday at 40,000 Feet!]]'' (1976) as Captain Pete Douglass
* ''A Sensitive, Passionate Man'' (1977) as Michael Delaney
* ''[[Superdome (film)|Superdome]]'' (1978) as Mike Shelley
* ''[[Nowhere to Run (1978 film)|Nowhere to Run]]'' (1978) as Harry Adams
* ''[[S.O.S. Titanic]]'' (1979) as [[John Jacob Astor IV|John Jacob Astor]]
* ''The Golden Gate Murders'' (1979) as Detective Sergeant Paul Silver
* ''[[High Ice (film)|High Ice]]'' (1980) as Glencoe MacDonald
* ''[[City in Fear]]'' (1980) as Vince Perrino (released posthumously)
* ''[[Father Damien]]: The Leper Priest'' (1980) (Incomplete – Replaced by Ken Howard) 
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===Television series===
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* ''[[Boston Blackie]]'' (1951) (Season 1 Episode 2: "Cop Killer") as Armored Car Driver (uncredited)
* ''[[Lux Video Theatre]]'' (1955–1956) (3 episodes)
**(Season 5 Episode 30: "It Grows on Trees") (1955) as Ralph
**(Season 5 Episode 51: "Perilous Deception") (1955) as Joe Davies
**(Season 6 Episode 27: "It Started With Eve") (1956) as Johnny Reynolds Jr.  
* ''[[Matinee Theatre]]'' (1956) (Episode 193: "Belong to Me") as Paul Merrick
* ''[[Conflict (American TV series)|Conflict]]'' (1957) (Season 1 Episode 12: "The Money") as Sid Lukes
* ''[[You Are There (series)|You Are There]]'' (1957) (Season 5 Episode 8: "The End of the Dalton Gang (October 5, 1892)" as Grat Dalton
* ''[[U.S. Marshal (TV series)|U.S. Marshal]]'' (1 episode {{Citation needed|date=March 2023}}) 
* ''[[Alcoa Theatre]]'' (1957–1958) (2 episodes)
**(Season 1 Episode 6: "Cupid Wore a Badge") (1957) as Mike Harper
**(Season 1 Episode 20: "Decoy Duck") (1958) as Jim McCandless
* ''[[The Millionaire (TV series)|The Millionaire]]'' (1957–1958) (2 episodes)
**(Season 4 Episode 14: "The Regina Wainwright Story") (1957) as Peter Miller
**(Season 5 Episode 5: "The David Barrett Story") (1958) as David Barrett
* ''[[Dick Powell's Zane Grey Theatre]]'' (1957–1959) (4 episodes)
**(Season 1 Episode 23: "There Were Four") (1957) as Danny Ensign
**(Season 2 Episode 14: "Trial by Fear") (1958) as Tod Owen
**(Season 3 Episode 1: "Trail to Nowhere") (1958) as Seth Larker
**(Season 3 Episode 15: "Hang the Heart High") (1959) as Dix Porter
* ''[[Richard Diamond, Private Detective]]'' (1957–1960) (77 episodes) as Richard Diamond / Chuck Garrett
* ''[[Sheriff of Cochise]]'' (1958) (Season 3 Episode 9: "The Turkey Farmers") as Arnie Hix
* ''[[Westinghouse Desilu Playhouse]]'' (1959) (Season 1 Episode 25: "Two Counts of Murder") as Ross Ingraham
* ''[[Death Valley Days]]'' (1961) (Season 9 Episode 18: "Deadline at Austin") as Dr. Bill Breckenridge
* ''[[Adventures in Paradise (TV series)|Adventures in Paradise]]'' (1961) (Season 3 Episode 6: "Show Me a Hero") as Scotty Bell
* ''[[Naked City (TV series)|Naked City]]'' (1961–1963) (2 episodes)
**(Season 3 Episode 5: "A Wednesday Night Story") (1961) as Blair Cameron
**(Season 4 Episode 26: "On the Battle Front: Every Minute is Important") (1963) as Carl Ashland
* ''[[Thriller (American TV series)|Thriller]]'' (1962)  
* ''[[Target: The Corruptors]]'' (1962) (Season 1 Episode 19: "The Middle Man") as Robbie Wilson
* ''[[General Electric Theater]]'' (1962) (Season 10 Episode 20: "Shadow of a Hero") as Pat Howard
* ''[[Follow the Sun (TV series)|Follow the Sun]]'' (1962) (Season 1 Episode 24: "A Choice of Weapons") as Johnny Sadowsky
* ''[[Checkmate (American TV series)|Checkmate]]'' (1962) (Season 2 Episode 25: "Ride a Wild Horse") as Len Kobalsky
* ''[[Cain's Hundred]]'' (1962) (Season 1 Episode 26: "Inside Track") as Dan Mullin
* ''[[Kraft Mystery Theatre]]'' (1962) 
* ''[[Route 66 (TV series)|Route 66]]'' (1962) (Season 3 Episode 1: "One Tiger to a Hill") as Karno Starling
* ''[[The Eleventh Hour (1962 TV series)|The Eleventh Hour]]'' (1962) (Season 1 Episode 3: "Make Me a Place") as Hal Kincaid
* ''[[The Dick Powell Show]]'' (1963) (Season 2 Episode 23: "Thunder in a Forgotten Town") as Kenneth 'Ken' Morgan
* ''[[The Fugitive (1963 TV series)|The Fugitive]]'' (1963–1967) (120 episodes) as Dr. Richard Kimble / varied aliases
* ''[[The Hollywood Palace]]'' (1965)
* ''[[O'Hara, U.S. Treasury]]'' (1971–1972) (23 episodes) as James O'Hara / Jim O'Hara  
* ''[[Cannon (TV series)|Cannon]]'' (1973) (Season 3 Episode 1: "He Who Digs a Grave") as Ian Kirk
* ''[[Harry O]]'' (1973–1976) (45 episodes) as Harry Orwell
* ''[[Police Story (1973 TV series)|Police Story]]'' (1977) (Season 5 Episode 1: "Trigger Point") as Sergeant Joe Wilson
* ''[[The Word (novel)#TV miniseries|The Word]]'' (1978) (miniseries) (all 4 episodes) as Steve Randall
* ''[[Centennial (miniseries)|Centennial]]'' (1978–1979) (Narrator for all 12 episodes) (10 episodes as Paul Garrett) 
* ''[[Biography (TV series)|Biography]]'' (1979) as Host {{Citation needed|date=March 2023}}
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