The List of actors/actresses who have appeared throughout M*A*S*H.
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Film
Introduced in MASH-Film
M*A*S*H
- René Auberjonois: Father John Patrick Mulcahy
- Gary Burghoff: Cpl. "Radar" O'Reillynote
- Robert Duvall: Major Frank Burns
- Elliott Gould: Capt. John Francis Xavier "Trapper John" McIntyre
- Sally Kellerman: Maj. Margaret 'Hot Lips' O'Houlihan
- Michael Murphy: 'Me Lai' Marston
- Tom Skerritt: Capt. Augustus Bedford "Duke" Forrest
- Donald Sutherland: Capt. Benjamin Franklin "Hawkeye" Pierce Jr.
- Fred Williamson: Capt. Oliver "Spearchucker" Jones
Television
Introduced in MASH-Series
M*A*S*H
- Philip Ahn: Mr. Kim/Korean Grandfather/The Father
- Alan Alda: "Hawkeye" Pierce
- Robert Alda: Dr. Anthony Borelli
- Derrick Peters Sr. in Trapper John MD
- John Anderson: Gen. Addison Collins
- Allan Arbus: Maj. Sidney Freedman
- Ed Begley Jr.: Pvt. Paul Conway
- Jason Bernard: Major Quentin Rockingham
- Earl Boen: Major Robert Hatch
- Sorrell Booke: Gen. Wilson Spaulding Barker
- Guy Boyd: Sgt. Lally
- Thorpe in AfterMASH
- Joel Brooks: Corpsman Ignazio De Simone
- Henry Brown: Sgt. Billy Tyler
- Phil Bruns: Col. Burton D. Hedley
- Charlie 'The Chicken' Schiff/Father in Trapper John MD
- Billy Green Bush: John 'Cowboy' Hodges
- The Stranger in AfterMASH
- Barry Cahill: Helicopter Pilot
- Mary Jo Catlett: Becky Anderson/Nurse Walsh
- Larry Cedar: The Soldier
- Zipkin in WALTER
- George Cheung: Peddler #1/1st Korean Soldier
- Charlie in Trapper John MD
- William Christopher: Father John Patrick Mulcahy note
- Oliver Clark: Lt. Tippy Brooks/Captain Ben Pierce
- Osgood Pomery/Rudy Burnham in Trapper John MD
- Robert Clotworthy: Pvt. Welch
- Richard Cummings Jr: Soldier
- Keene Curtis: Col. Wortman
- Mr. Bayard in Trapper John MD
- Brian Dennehy: as M.P. Ernie Connors
- Cameron Dye: Soldier
- Gail Edwards: Marina Ryan
- Gene Evans: Clayton Kibbee
- Matthew Faison: Reporter Bill Stitzel
- Jamie Farr: Maxwell Q. Klinger
- Mike Farrell: B.J. Hunnicutt
- Martin Ferrero: Wounded Man in Jeep
- Loomis in AfterMASH
- Laurence Fishburne: as Corporal Dorsey
- Lois Foraker: Lt. Able/Lt. Bell/Lt. Denver
- Nurse Coleman in AfterMASH
- Bernard Fox: Major Ross
- Charles Frank: Captain Hathaway/Lieutenant Martinson
- Alan Fudge: Capt. Arnold Chandler
- Paul Spencer in Trapper John MD
- Flannery in AfterMASH
- David Graf: Lt. Spears
- Jaster in AfterMASH
- James Gregory: Lt. Gen. Robert "Iron Guts" Kelly
- Gary Grubbs: Lt. Geyer
- Philip Baker Hall: as Sgt. Hacker
- Gregory Harrison: Lt. Tony Baker
- Dr. George Alonzo 'Gonzo' Gates in Trapper John MD
- Mariette Hartley: Dr. Inga Halvorsen
- Richard Herd: Capt. Bill Snyder
- Pat Hingle: Col. Daniel Webster Tucker
- Chester Briggs/Hub Wendover in Trapper John MD
- Basil Hoffman: Major Pfiefer/Major Bartruff
- Robert Ito: North Korean/Lin
- Paul Jenkins (actor): Sgt. Baker
- Percy in Trapper John MD
- Peter Jurasik: Capt. Triplett
- James Karen: Dr. Stephen Chesler
- Krewitt in Trapper John MD
- William Katt: P.F.C.
- Bert Kramer: Sgt. Martin
- Susan Krebs: Nurse Gleason
- Clyde Kusatsu: Kwang Duk/Capt. Paul Yamato/Sgt. Michael Yee
- Dr. Sung Kang in Trapper John MD
- Art LaFleur: The MP
- Fred Lerner: Patient #1
- Michael Lerner: Captain Futterman
- George Lindsey: Capt. Roy Dupree
- Richard Lineback: Pvt. Scala/Eddie
- Larry Linville: Frank Burns
- Carol Locatell: Nurse Gaynor
- Shelley Long: as Lt. Mendenhall
- William Lucking: Sgt. Marty Urbancic
- Joseph Maher: Major Taylor
- Stuart Margolin: Major Stanley 'Stosh' Robbins/Captain Phillips G. Sherman
- Barney Martin: Fella/Herbert Mitchell
- Carmen Mathews: Colonel Lillian Rayburn
- John Matuszak: Cpl. Elmo Hitalski
- Joe McGurski in Trapper John, MD
- Michael McGuire: Col. Mulholland
- Michael McManus (Actor): Sgt. Ames
- Harry Morgan: Sherman T. Potter/Gen. Bartford Hamilton Steele
- Byron Morrow: Sanderson/Ear Specialist/Dr. Schoenberg
- Christopher Murney: Remy
- Kellye Nakahara: Lt. Kellye Yamato.
- Dick O'Neill: Col. Pitts/Brig. Gen. Marion Prescott/Adm. Cox
- Wade Ralston/Ed Renquist in Trapper John MD
- Janis Paige: Catherine Hackett
- Joe Pantoliano: as Cpl. Gerald Mullen
- Kelly Jean Peters: Lt. Louise Anderson
- Mary Kay Place: as Lt. Louise Simmons
- Howard Platt: Major Ted Spector
- Lawrence Pressman: Congressional Aide R. Theodore Williamson
- William Prince: Dr. Jerome Wilkes
- Ford Rainey: Gen. Coogan
- John Randolph: Gen. Budd Haggerty
- Dr. Frances McDuffy/Ben Calvert in Trapper John MD
- Peter Riegert: Cpl. Igor Straminsky note
- Jack Riley: Capt. Kaplan
- Marcia Rodd: Nurse Lorraine Anderson
- Imogene Keaton/EJ Willoughby Riverside in Trapper John M.D.
- Wayne Rogers: "Trapper John" McIntyre
- John P. Ryan: Major Van Zandt
- Susan Saint James: Aggie O'Shea
- David Ogden Stiers: Charles Emerson Winchester III
- James Stephens: Pvt. David Sheridan
- McLean Stevenson: Henry Blake
- Lynne Marie Stewart: Lt. Fox, RN/Lt. Plummer, RN/Lt. Baker, RN/Lt. Clark, RN
- Marcia Strassman: Nurse Maggie Cutler
- Todd Susman: P.A. Announcer/Pvt. Danny Baker
- Patrick Swayze: Pvt. Gary Sturgis
- Loretta Swit: as Margaret "Hot Lips" Houlihan
- Robert Symonds: Col. Horace Baldwin
- Michael Talbott: G.I. #2
- Barbara Tarbuck: Maj. Judy Parker
- Joan Van Ark: Lt. Erika Johnson.
- Mary Wickes: Col. Reese.
- Rocky Flanagan/Hazel/Miranda in Trapper John M.D.
- Larry Wilcox: Corporal Mulligan
- Theodore Wilson: Warrant Officer Martin "Marty" Williams
- Edward Winter: Col. Samuel Flagg/Capt. Halloran
- Rev. Randy Niles/Dr. Hanley in Trapper John, MD
- George Wyner: Cpl. Benson
- Burt Young: Lt. Willis
Introduced in AfterMASH
AfterMASH
- Leslie Bevis: Stella
- Patrick Collins: Byron Carstairs
- Pat Corley: The Judge
- Patrick Cranshaw: Bob Scannell
- Ellen Crawford: Shelly Lucas
- Jeff Doucette: Wolfe
- Steve Eastin: Patient
- Kathleen Freeman: Mrs. Poulous
- Mari Gorman: Miss Shifman
- Jerry Hardin: Kraus
- Geoffrey Lewis: Rev. Purvis Gentry
- Susan Ruttan: Doris Gardena
- Jay O. Sanders: Dr. Gene Pfeiffer
- Wendy Schaal: Bonnie Hornback
- Lee Weaver: Jones
- Norbert Weisser: Henry Smith
- James Widdoes: Bruce Ennis
- Kathleen Wilhoite: Sandy
- Max Wright: Burt Philbrick
- Biff Yeager: Patient
Introduced in Trapper John MD
Trapper John, M.D.
- Ray Abruzzo: Thaddeus Coates
- Julie Adams: Lorrie Malcolm
- Norman Alden: Coach
- R. G. Armstrong: Bates/George/Ralph/Telephone Repairman/Repairman
- Victor Arnold: Johanis Rivera
- Candice Azzara: Sherry
- Hermione Baddeley: Freida Holloway
- Diane Baker: Mrs. Forsyte
- Barbara Barrie: Dr. Kate Potter
- Noah Beery Jr.: Buckaroo Bob Morgan
- Fran Bennett: Mrs. Ramsey
- Lucille Benson: Clarissa Mae Purcell
- Bibi Besch: Glenda Watson/Sharon Vance
- Theodore Bikel: Vladimir Lopatkin
- Lloyd Bochner: Randolph Tiegs
- Peter Brocco: Rosen/Gus/Elderly Man/Dr. Willens
- Stanley Brock: Alan Kaylns
- Timothy Busfield: Dr. John 'J.T.' McIntyre Jr.
- Joseph Campanella: Dr. Julian King
- Pat Carroll: Aunt Mo.
- Bernie Casey: Thornie Thornberry
- Joanna Cassidy: Maggie Holtz/Dr. Carson Whitaker
- Lonny Chapman: Police Detective/Peter Jenkins
- Eric Christmas: Dean
- Michael Constantine: Max Wyatt
- Carole Cook: Natasha
- Gretchen Corbett: Vivian Langtry
- John Crawford: Det. Judson
- Michael Currie: Newsman
- Dr. Breuer in MASH
- Kim Darby: Marsha Huber/Cassie Thomas
- Anthony De Longis: Mick Taggart
- Dena Dietrich: Prison Guard
- Pamela Dunlap: Woman/Kathleen Hughes
- Leslie Easterbrook: Louella
- Edward Edwards: Andy Murray/Danny
- Paddi Edwards: Mrs. Blake
- Tom Ewell: Earl Tendermeyer
- Constance Forslund: Carol Collins/Lorna Latour
- Anne Francis: Gail Edsin/Mrs. Havenhurst
- Gary Frank: Dr. Wesley Dunbar
- William Frankfather: Uri
- Penny Fuller: Elaine/Beverly Friendly
- Jenny Gago: Tahoe Nurse
- Gina Gallego: Nurse
- Allen Garfield: Brody
- Jack Gilford: Oscar Brady/Irving R. Ziegler
- Bradley Gregg: Teenager #1
- David Groh: Donnelly
- Signe Hasso: Martine Le Vasseur
- Gina Hecht: Lisa/Trinka
- Jason Hervey: Ricky Mercer
- Celeste Holm: Lillie Townsend/Claudia
- Robert Hooks: Sykes
- Kevyn Major Howard: Tony
- David Huddleston: Wallace Surtees
- Clifton James: Lewis/Bobby Joe Brady
- Harvey Jason: Martin Hopkins
- Salome Jens: Helen McCall
- Arte Johnson: Dr. Augustus Bunche
- Nicky Katt: Scott Spencer
- Stepfanie Kramer: Cheryl
- Patrick Labyorteaux: Billy
- Michael Laskin: Craig Chatfield
- Richard Libertini: Fred Berlow
- Viveca Lindfors: Zella Korevechi
- Kathleen Lloyd: Annie/Wendy Fitzpatrick/Allison Coates
- Gary Lockwood: Dr. Matthew Ashfield/Augie
- Janet MacLachlan: Lindsay Merrick
- Monte Markham: Beaumont
- Kenneth Mars: Malcolm Carrothers/Dr. French
- Frances Lee McCain: Sara Martin
- Marc McClure: Luther
- Edie McClurg: Kathleen Wheeler
- James McEachin: Judge Jackson
- John McIntire: Diner Patron
- Jayne Meadows: Edwina Garth/Melissa
- Lynne Moody: Karen
- Rita Moreno: Liz Boyce
- Debbi Morgan: Linda/Denise
- Howard Morris: Dr. Jerry Hannigan/Dr. Kauffman
- Robert Morse: Honest Wayne McIntyre
- George Murdock: Jobo's Dad
- Rosemary Murphy: Vanessa Downing
- Ed Nelson: Albert Ryker
- Jeanette Nolan: Dorothy Fitch/Verna
- Laurie O'Brien: Oliva
- Jenny O'Hara: Christina Kulyn/Emily McCall
- Walter Olkewicz: Dr. Larry Denmore
- Stuart Pankin: August Havermayer
- Donna Pescow: Linda D'Amico
- Barney Phillips: Dr. Baker
- Wendy Phillips: Laura Johnson
- Andrew Prine: Dr. Aubrey "Neil" Neilson
- Nicholas Pryor: Mr. Schweitzer
- Major Nathaniel Burnham in MASH
- Bill Quinn: Ex Pug/Thomas
- Allan Rich: Tom Jenkins/McGee
- Pernell Roberts: Dr. "Trapper" McIntyre
- Tony Roberts: Lawrence Kolleeny/Dr. Jerry Kulyn
- John Rubinstein: Hank Palmer
- Paul Sand: Philip Devonshire.
- Joe Santos: Inspector Jim Stemm.
- Ronnie Schell: Marshall Shields/Dr. Haas
- Madge Sinclair: Ernestine Shoop R.N.
- Patricia Smith: Alma.
- William Smith: Tugwell.
- David Spielberg: Hollander.
- Raymond St. Jacques: Dr. Riggs Martin.
- Timothy Stack: Male Patient.
- Heard/Ernie Temple in AfterMASH.
- Beau Starr: Bruiser.
- Peggy Stewart: Mrs. Hodges.
- Larry Storch: Getzkift.
- Elaine Stritch: Dr. Mary Gerrard.
- Maxine Stuart: Ms. Langley.
- Ken Swofford: Mr. Stone/The Chief
- Kristoffer Tabori: Dr. Dave Gerson/Vinnie Duncan/Ian.
- Philip Michael Thomas: Floyd Walsh
- Irene Tsu: Dr. Julie Lok.
- Michael Tucci: Dr. Charlie Nichols/Dr. Bloom
- Lurene Tuttle: Lady/Mrs. Worth/Mrs. Gatwick/Grace/Mrs. Palmer/Mrs. Romanis
- Dee Wallace: Dr. Valerie Tatum
- Ray Walston: Rusty/Harold Brandon/Sidewalk Santa
- Sandy Ward: Ramsey
- David Wayne: Stanley Riverside Sr.
- David Wells: Dr. Ted Trent.
- Dick Anthony Williams: Brian
- Cassie Yates: Laura Brand
- Richard Yniguez: Mark Petrie
- Carmen Zapata: Anna/Nurse Lopez
Introduced in WALTER-Unaired pilot
- Ray Buktenica: Wendell Micklejohn
- Victoria Jackson: Victoria
- Sam Scarber: Haskell
- Lyman Ward: Bigelow
