Radar (Walter), Trapper (John), Father Mulcahey (John) and Hawkeye (Benjamin)- MASH (However, BJ really went by his first name.)

JD (John) and Turk (Christopher)- Scrubs

Mr. Burns (Charles Montgomery), Smithers (Waylon), and Principal Skinner (Seymour)- The Simpsons

Coach (Ernie)- Cheers

Warren "Potsie" Webber - Happy Days

Goober Pyle - The Andy Griffith Show. I can't recall his real name ever being mentioned but surely it wasn't Goober. :lol:

Arthur Fonzarelli who was called "Fonzie" by everyone except Mrs. C.

John Walton Jr. AKA John-Boy - The Waltons

Sam Dracula AKA Grandpa - The Munsters

Jonas Grumby - AKA The Skipper - Gilligan's Island

Roy Hinckley AKA The Professor - Gilligan's Island

Det. Stanley Wojciehowicz (aka Wojo) - Barney Miller

Sgt. Phil Fish - Barney Miller

Cosmo Kramer - Seinfeld

Newman - Seinfeld (did they ever reveal his first name?)

Irwin Handelman (aka Skippy) - Family Ties

(Dwayne) Schneider - One Day At A Time

George Stevens AKA Kingfish - The Amos N' Andy Show

Theodore Cleaver AKA Beaver- Leave it to Beaver

Clarence Rutherford AKA Lumpy Leave it to Beaver

Hank Yarbo , whose first name is Really Richard (He goes by his middle name) - Corner Gas

Officers Smitty, Swanny and Hoppy on Sanford & Son. I don't think their first names were ever revealed, but I could be wrong.

Richard "Chip" Douglas -- My Three Sons; always goes by the nickname

Michael Francis "Bub" O'Casey (Wm. Frawley) -- My Three Sons

Samuel "Screech" Powers -- Saved By the Bell; always Screech!

Daisy "Granny" Moses -- The Beverly Hillbillies; "Granny" dominates by far

Michael "Dauber" Dybinski -- Coach

Maurice "Buddy" Sorrell - The Dick Van Dyke Show
Reinhold "Dan" Fielding - Night Court
Burl "Gopher" Smith - The Love Boat
Adam "Doc" Bricker - The Love Boat

Bernard "Barney" Fife - The Andy Griffith Show
James Evans "J.J." Jr - Good Times
Justin "Jackpot" Jackson - Trapper John M.D.

George "Feeney" (Boy Meets World)
Kimmy "Gibbler" (Full House)

Lt. Columbo's first name was never revealed.

"Byron" Sully-Dr. Quinn Medicine Woman
Sully never went by his first name of Byron, he hated it. I liked Sully better anyway.

Fes from that 70's Show. My friend who watched the show told me that everyone calls him Fes, which is short for Foreign Exchange Student. Nobody knew how to say his real name.
I don't know how true this is, I am just going by what she told me.

That's all I can think of right now. I am sure more will come to me later. When I think of them I will add them.

Benjamin "Haweye" Pierce on Mash.
Elizabeth Josephine Bradley "Betty Jo" on Petticoat Junction.
Christmas Snow "Chrissy" on Three's Company.
Capt. Henry "Hank" Stanley on Emergency. :wave:

Cynthia "Cindy" Brady
Robert "Bobby" Brady

In a reverse situation--we rarely heard Sam's last name and it wasn't "Da Butcher" :lol: it was Franklin.

From The A-Team

Col. John 'Hannibal' Smith
Capt. H.M. "Howling Mad" Murdock
Sgt. Bosco "B.A." Baracus
Lt. Templeton 'Faceman' Peck

Charles "Chachi" Arcola - Happy Days
Richard "Boner" Stabone - Growing Pains
Nellie Ruth "Nell" Harper - Gimme a Break
Major John D. "Mac" MacGillis - Major Dad
Morris "Mo" Tibbs - The Smart Guy

Arthur "Fonzie" Fonzarelli- Happy Days
Richard Cunningham- Happy Days

Milburn Drysdel aka MR. Drysdel.

Beatrice "Aunt Bee" Taylor - The Andy Griffith Show

Cpl Gilbert "Duke" Slater - Gomer Pyle USMC

Andrew "Squiggy" Squiggman - Laverne and Shirley

Leonard "Lenny" Kosnowski - Laverne and Shirley

Dr. Leonard "Bones" McCoy - Star Trek

John Ross J.R. Ewing-Dallas
Dr. Zachary Smith Dr. Smith-Lost In Space
William Robinson Will-Lost In Space
Maxwell Smart Max or 86-Get Smart
Anthony Nelson Tony-I Dream Of Jeannie
Wallace Cleaver Wally-Leave It To Beaver
Theodore Cleaver Beaver-Leave It To Beaver
Clarence Rutherford Lumpy-Leave It To Beaver
Edward Wolfgang Eddie-The Munsters
Budrick Bundy Bud-Married With Children

Nathan Bookman - Good Times

Danny Williams aka Dann-O - Hawaii Five-O

Joanna Marie Polianecek (sp?) aka Jo - Facts of Life

Dorothy Ramsey aka Tootie - Facts of Life

Weasel - Family Matters (I don't think his full name was ever revealed)

Eric "Hoss" Cartwright -- Bonanza

... and since Betty Jo was listed earlier:
Wilhelmina Josephine "Billie Jo" Bradley -- Petticoat Junction
Roberta Josephine "Bobbie Jo" Bradley -- Petticoat Junction

how about actors charactors really called by real first real name by accident

yes, like once, on "MASH" Frank asked Igor what his last name is, and he replied "Maxwell"-of course; the actors name was Jeff Maxwell.

Detectives Harris, Youmona, Wojohoitz, & Fish on "BARNEY MILLER", Mr. Haney on "GREEN ACRES" (I think they said his first name once, and it was Eunice).
Sulu, Checkov, and Lt. Uhera on "STAR TREK"-in fact, it wasn't until the movie "Star Trek 4" that Checkovs first name was ever said, and Sulu and Uheras first names were never said in the series or any of the movies; just in the books.

(Cosmo) Kramer on Seinfeld.

Dr. Gregory House.

Hogan's Heroes (http://www.sitcomsonline.com/boards/forumdisplay.php?f=71) - The military cast would usually call each other by either their rank and/or last name. I don't think anyone has ever called Kinch by his first name James or Hogan by only his first name Robert, not even the women he managed to make out with.

On The Wonder Years Winnie's real name was Gwendolyn, as in Gwendolyn Cooper. I think it was referred to just once.

Here's another one: Michael "Dauber" Dybinski on Coach

It's most likely been mentioned already, but no one calls Dan Fielding "Reinhold", seeing as his birth name is Reinhold Daniel Fielding Elmore (and later stupidly changed to Daniel R. Fielding, I hate how later on in the series they made it his middle name).

This means nothing, but in one of the first or second season episodes Dan's name was Daniel A. Fielding, the A probably for Alan.

Mary Elizabeth Jennifer Rachel Yiddell Abergavenny Slocombe always know as either Mr. Slocombe or (on occassion) Betty

Captain Stephan Peacock - usually capt peacock

Wilberforce Claiborne Humphries - usually Mr. Humphries

Mr. Lucas's first name was in dispute - sometimes refered to as Dick

Oh, I just thought of another one: Emma "Grace" McKee on State of Grace, who gave the show that name! (It certainly slides off the tongue better than "State of Emma", right?)

On Fresh Prince, I don't think Philip Banks' name was really Philip. I believe it was Zeke. His mother called him Zeke every time she visited.

On Roseanne, DJ's real name was David Jacob Conner.

On Full House, DJ's real name was Donna Jo Tanner.

On The Cosby Show, Theo had a friend named Walter but everyone called him Cockroach.
Theo's full name was Theodore but nobody ever called him by his full name. Same with Rudy, her full name was Rudith but they never called her that.

Was Jazz's real name Jazz on Fresh Prince? I doubt it. :rotflmao:

On Growing Pains Ben had a friend named Stinky Sullivan. I highly doubt his real name was Stinky. :lol:
Ben's full name was Benjamin but nobody ever called him that.
Same with Maggie, her full name was Margaret, Mike's full name was Michael, and Chrissy's was Christine.

On Dr. Quinn, Sully and Michaela's daughter's full name was Katherine but they all called her Katie. (It is also the name of Jane Seymour's real life daughter.)

Beauragard "Bo" Duke - Dukes of Hazzard

Jefferson Davis "Boss" Hogg - Dukes of Hazzard

Carlos "El Puerco" Valdez - Soap

Dr. Robert "Bob" Hartley - Bob Newhart Show

Officer Francis "Ponch" Poncherello - CHiPS

The Lone Ranger (John Reid)

Doc (Galen) Adams - Gunsmoke

James (Grizzly) Adams

One Day at Time- Dwayne Scheinder- "Scheinder"

... Mr. Haney on "GREEN ACRES" (I think they said his first name once, and it was Eunice).

He was Eustice Haney.

He was Eustice Haney.
No wonder he preferred to be called Mr. Haney. :lol:

Norton! (The Honeymooners)

His first name was Ed; you didn't hear it all that often. Heck, even his wife called him Norton a couple times. :lol:

Jonathan Quayle "Higgins" Higgins - Magnum, P.I.

Mick "Dogbreath" Belker - Hill Street Blues, though they rarely ever use his 1st name Mick, they just either call him "Dogbreath" or just plain Det. Belker.

Theodore "T.C." Calvin - Magnum, P.I. I dunno if they ever used his real name before or not.

Maybe some repeats - sorry

Facts of Life
Jo - Joanna Marie
Tootie - Dorothy

Roseanne
DJ - David Jacob
Becky - Rebecca
David (depends on how you look at it - Roseanne said David was not his real name and he was Steve or something in his 1st episode, but no telling if it was meant to be a joke by Roseanne or error in script)

Mamas Family
Vent - Venton

Friends
Joey - Joseph

The Nanny
Fran - Francine (or so it was said one time)

The Cosby Show
Theo aka Teddy in Pilot - Theodore
Cockroach - Walter (only by the parents was he called by his real name regularly)
Cliff - Heathcliff or Clifford (Pilot)
Rudy - Rudith

Fresh Prince
Phil - Phillip
Will - William

Full House
DJ - Donna Jo
Kimmy - Kimberly

It's most likely been mentioned already, but no one calls Dan Fielding "Reinhold", seeing as his birth name is Reinhold Daniel Fielding Elmore (and later stupidly changed to Daniel R. Fielding, I hate how later on in the series they made it his middle name).

This means nothing, but in one of the first or second season episodes Dan's name was Daniel A. Fielding, the A probably for Alan.
I thought of you the other day when I was at the library. I saw a tall man there who looked a lot like John Larroquette - silver hair and all. :D

A.J. - Andrew Jackson Simon - Simon & Simon - only on some extra rare cases does he ever use his entire real name.

John Bosley - Charlie's Angels

James Anderson Jr. aka Bud on Father Knows Best.