We don't have a biography for Corporal Walter Eugene "Radar" O'Reilly yet. Hang in there, or go ahead and contribute one.
Appearances
M*A*S*H
Main cast, played by Gary Burghoff
- Episode 1x01: M*A*S*H - The Pilot (Sep 17, 1972)
- Episode 1x02: To Market, to Market (Sep 24, 1972)
- Episode 1x03: Requiem for a Lightweight (Oct 1, 1972)
- Episode 1x04: Chief Surgeon Who? (Oct 8, 1972)
- Episode 1x05: The Moose (Oct 15, 1972)
- Episode 1x06: Yankee Doodle Doctor (Oct 22, 1972)
- Episode 1x07: Bananas, Crackers and Nuts (Nov 5, 1972)
- Episode 1x08: Cowboy (Nov 12, 1972)
- Episode 1x09: Henry, Please Come Home (Nov 19, 1972)
- Episode 1x10: I Hate A Mystery (Nov 26, 1972)
- Episode 1x11: Germ Warfare (Dec 10, 1972)
- Episode 1x12: Dear Dad (Dec 17, 1972)
- Episode 1x13: Edwina (Dec 24, 1972)
- Episode 1x14: Love Story (Jan 7, 1973)
- Episode 1x15: Tuttle (Jan 14, 1973)
- Episode 1x16: The Ringbanger (Jan 21, 1973)
- Episode 1x17: Sometimes You Hear the Bullet (Jan 28, 1973)
- Episode 1x18: Dear Dad, Again (Feb 4, 1973)
- Episode 1x19: The Long-John Flap (Feb 17, 1973)
- Episode 1x20: The Army-Navy Game (Feb 25, 1973)
- Episode 1x21: Sticky Wicket (Mar 4, 1973)
- Episode 1x22: Major Fred C. Dobbs (Mar 11, 1973)
- Episode 1x23: Cease-Fire (Mar 18, 1973)
- Episode 1x24: Showtime (Mar 25, 1973)
- Episode 2x01: Divided We Stand (Sep 15, 1973)
- Episode 2x02: 5 O'Clock Charlie (Sep 22, 1973)
- Episode 2x03: Radar's Report (Sep 29, 1973)
- Episode 2x04: For the Good of the Outfit (Oct 6, 1973)
- Episode 2x05: Dr. Pierce and Mr. Hyde (Oct 13, 1973)
- Episode 2x06: Kim (Oct 20, 1973)
- Episode 2x07: L.I.P. (Local Indigenous Personnel) (Oct 27, 1973)
- Episode 2x08: The Trial of Henry Blake (Nov 3, 1973)
- Episode 2x09: Dear Dad... Three (Nov 10, 1973)
- Episode 2x10: The Sniper (Nov 17, 1973)
- Episode 2x11: Carry on Hawkeye (Nov 24, 1973)
- Episode 2x12: The Incubator (Dec 1, 1973)
- Episode 2x13: Deal Me Out (Dec 8, 1973)
- Episode 2x14: Hot Lips and Empty Arms (Dec 15, 1973)
- Episode 2x15: Officers Only (Dec 22, 1973)
- Episode 2x16: Henry in Love (Jan 5, 1974)
- Episode 2x17: For Want of a Boot (Jan 12, 1974)
- Episode 2x18: Operation Noselift (Jan 19, 1974)
- Episode 2x19: The Chosen People (Jan 26, 1974)
- Episode 2x20: As You Were (Feb 2, 1974)
- Episode 2x21: Crisis (Feb 9, 1974)
- Episode 2x22: George (Feb 16, 1974)
- Episode 2x23: Mail Call (Feb 23, 1974)
- Episode 2x24: A Smattering of Intelligence (Mar 2, 1974)
- Episode 3x01: The General Flipped at Dawn (Sep 10, 1974)
- Episode 3x02: Rainbow Bridge (Sep 17, 1974)
- Episode 3x03: Officer of the Day (Sep 24, 1974)
- Episode 3x04: Iron Guts Kelly (Oct 1, 1974)
- Episode 3x05: O.R. (Oct 8, 1974)
- Episode 3x06: Springtime (Oct 15, 1974)
- Episode 3x07: Check-Up (Oct 22, 1974)
- Episode 3x08: Life with Father (Oct 29, 1974)
- Episode 3x09: Alcoholics Unanimous (Nov 12, 1974)
- Episode 3x10: There Is Nothing Like a Nurse (Nov 19, 1974)
- Episode 3x11: Adam's Ribs (Nov 26, 1974)
- Episode 3x12: A Full Rich Day (Dec 3, 1974)
- Episode 3x13: Mad Dogs and Servicemen (Dec 10, 1974)
- Episode 3x15: Bombed (Jan 7, 1975)
- Episode 3x16: Bulletin Board (Jan 14, 1975)
- Episode 3x17: The Consultant (Jan 21, 1975)
- Episode 3x18: House Arrest (Feb 4, 1975)
- Episode 3x19: Aid Station (Feb 11, 1975)
- Episode 3x20: Love and Marriage (Feb 18, 1975)
- Episode 3x21: Big Mac (Feb 25, 1975)
- Episode 3x22: Payday (Mar 4, 1975)
- Episode 3x23: White Gold (Mar 11, 1975)
- Episode 3x24: Abyssinia, Henry (Mar 18, 1975)
- Episode 4x01: Welcome to Korea (Sep 12, 1975)
- Episode 4x02: Change of Command (Sep 19, 1975)
- Episode 4x03: It Happened One Night (Sep 26, 1975)
- Episode 4x04: The Late Captain Pierce (Oct 3, 1975)
- Episode 4x05: Hey, Doc (Oct 10, 1975)
- Episode 4x06: The Bus (Oct 17, 1975)
- Episode 4x07: Dear Mildred (Oct 24, 1975)
- Episode 4x08: The Kids (Oct 31, 1975)
- Episode 4x09: Quo Vadis, Captain Chandler (Nov 7, 1975)
- Episode 4x10: Dear Peggy (Nov 11, 1975)
- Episode 4x11: Of Moose and Men (Nov 21, 1975)
- Episode 4x12: Soldier of the Month (Nov 28, 1975)
- Episode 4x13: The Gun (Dec 2, 1975)
- Episode 4x14: Mail Call, Again (Dec 9, 1975)
- Episode 4x16: Dear Ma (Dec 23, 1975)
- Episode 4x17: Der Tag (Jan 6, 1976)
- Episode 4x18: Hawkeye (Jan 13, 1976)
- Episode 4x19: Some 38th Parallels (Jan 20, 1976)
- Episode 4x20: The Novocaine Mutiny (Jan 27, 1976)
- Episode 4x22: The More I See You (Feb 10, 1976)
- Episode 4x23: Deluge (Feb 17, 1976)
- Episode 4x24: The Interview (Feb 24, 1976)
- Episode 5x01: Bug Out (Sep 21, 1976)
- Episode 5x02: Margaret's Engagement (Sep 28, 1976)
- Episode 5x03: Out of Sight, Out of Mind (Oct 5, 1976)
- Episode 5x04: Lt. Radar O'Reilly (Oct 12, 1976)
- Episode 5x05: The Nurses (Oct 19, 1976)
- Episode 5x06: The Abduction of Margaret Houlihan (Oct 26, 1976)
- Episode 5x08: Mulcahy's War (Nov 16, 1976)
- Episode 5x09: The Korean Surgeon (Nov 23, 1976)
- Episode 5x11: The Colonel's Horse (Dec 7, 1976)
- Episode 5x12: Exorcism (Dec 14, 1976)
- Episode 5x13: Hawk's Nightmare (Dec 21, 1976)
- Episode 5x14: The Most Unforgettable Characters (Jan 4, 1977)
- Episode 5x15: 38 Across (Jan 11, 1977)
- Episode 5x16: Ping Pong (Jan 18, 1977)
- Episode 5x17: End Run (Jan 25, 1977)
- Episode 5x18: Hanky Panky (Feb 1, 1977)
- Episode 5x19: Hepatitis (Feb 8, 1977)
- Episode 5x20: The General's Practitioner (Feb 15, 1977)
- Episode 5x21: Movie Tonight (Feb 22, 1977)
- Episode 5x24: Margaret's Marriage (Mar 15, 1977)
- Episode 6x01: Fade Out, Fade In (Sep 20, 1977)
- Episode 6x02: Fallen Idol (Sep 27, 1977)
- Episode 6x03: Last Laugh (Oct 4, 1977)
- Episode 6x04: War of Nerves (Oct 11, 1977)
- Episode 6x05: The Winchester Tapes (Oct 18, 1977)
- Episode 6x09: Images (Nov 15, 1977)
- Episode 6x14: The Merchant of Korea (Dec 20, 1977)
- Episode 6x19: What's Up, Doc? (Jan 30, 1978)
- Episode 6x20: Mail Call Three (Feb 6, 1978)
- Episode 6x21: Temporary Duty (Feb 13, 1978)
- Episode 6x22: Potter's Retirement (Feb 20, 1978)
- Episode 6x23: Dr. Winchester and Mr. Hyde (Feb 27, 1978)
- Episode 6x24: Major Topper (Mar 27, 1978)
- Episode 7x01: Commander Pierce (Sep 18, 1978)
- Episode 7x02: Peace on Us (Sep 25, 1978)
- Episode 7x03: Lil (Oct 2, 1978)
- Episode 7x04: Our Finest Hour (Oct 9, 1978)
- Episode 7x05: The Billfold Syndrome (Oct 16, 1978)
- Episode 7x06: None Like It Hot (Oct 23, 1978)
- Episode 7x07: They Call the Wind Korea (Oct 30, 1978)
- Episode 7x09: Baby, It's Cold Outside (Nov 13, 1978)
- Episode 7x10: Point of View (Nov 20, 1978)
- Episode 7x12: Out of Gas (Dec 4, 1978)
- Episode 7x14: Dear Sis (Dec 18, 1978)
- Episode 7x15: B.J. Papa San (Jan 1, 1979)
- Episode 7x17: The Price (Jan 15, 1979)
- Episode 7x18: The Young and the Restless (Jan 22, 1979)
- Episode 7x19: Hot Lips Is Back in Town (Jan 29, 1979)
- Episode 7x21: Rally Round the Flagg, Boys (Feb 12, 1979)
- Episode 7x22: Preventive Medicine (Feb 19, 1979)
- Episode 7x23: A Night at Rosie's (Feb 26, 1979)
- Episode 7x25: The Party (Mar 12, 1979)
- Episode 8x01: Too Many Cooks (Sep 17, 1979)
- Episode 8x03: Guerilla My Dreams (Oct 1, 1979)
- Episode 8x04: Good-Bye Radar (1) (Oct 8, 1979)
- Episode 8x05: Good-Bye Radar (2) (Oct 15, 1979)
Guest cast, played by Gary Burghoff
- Episode 5x10: Hawkeye Get Your Gun (Nov 30, 1976)
- Episode 5x22: Souvenirs (Mar 1, 1977)
- Episode 5x23: Post Op (Mar 8, 1977)
- Episode 6x06: The Light That Failed (Oct 25, 1977)
- Episode 6x07: In Love and War (Nov 1, 1977)
- Episode 6x08: Change Day (Nov 8, 1977)
- Episode 6x10: The M*A*S*H Olympics (Nov 22, 1977)
- Episode 6x11: The Grim Reaper (Nov 29, 1977)
- Episode 6x12: Comrades in Arms (1) (Dec 6, 1977)
- Episode 6x13: Comrades in Arms (2) (Dec 13, 1977)
- Episode 6x15: The Smell of Music (Jan 3, 1978)
- Episode 6x16: Patient 4077 (Jan 10, 1978)
- Episode 6x17: Tea and Empathy (Jan 17, 1978)
- Episode 7x08: Major Ego (Nov 6, 1978)
- Episode 7x11: Dear Comrade (Nov 27, 1978)
- Episode 7x13: An Eye for a Tooth (Dec 11, 1978)
- Episode 7x16: Inga (Jan 8, 1979)
- Episode 7x20: C*A*V*E (Feb 5, 1979)
- Episode 7x24: Ain't Love Grand (Mar 5, 1979)
- Episode 8x02: Are You Now, Margaret? (Sep 24, 1979)
- Episode 8x06: Period of Adjustment (Oct 22, 1979)
- Episode 8x07: Nurse Doctor (Oct 29, 1979)
- Episode 8x08: Private Finance (Nov 5, 1979)
- Episode 8x09: Mr. and Mrs. Who? (Nov 12, 1979)
- Episode 8x10: The Yalu Brick Road (Nov 19, 1979)
- Episode 8x11: Life Time (Nov 26, 1979)