
The correct answer is Allan Melvin.
Irving wasn’t a cartoon character. He was the star of an MGM children’s record put on the market in 1947. Columnist Leonard Lyons noted in Sept. 26 that year that Melvin played 37 different roles on the record (two double-faced, 10-inch 78s). Melvin was 24 years old at the time.
Before his long TV career, in animation and live action, Melvin got his break thanks to the audience of Arthur Godfrey’s Talent Scouts on CBS radio. Like Art Carney, Melvin began his career as an impressionist, and won the amateur contest on the Oct. 15, 1946 show. He hit the cabaret scene the following year, appearing at the CafĂ© Society in Greenwich Village; Lew Sheaffer’s column in the Brooklyn Eagle of Nov. 14, 1947 mentioned he impersonated Humphrey Bogart and Frederic March.

Melvin couldn’t get out uniform for a while. He jumped to TV as Sgt. Henshaw on the Phil Silvers show starting in 1955, played Rob Petrie’s army buddy in a number of episodes of The Dick Van Dyke Show and appeared as Staff Sgt. Hacker off-and-on on Gomer Pyle, USMC.
The military roles led to cartoons. Melvin’s first animated voice roles were in the 1963 syndicated Beetle Bailey cartoons, where he played Sgt. Snorkle and Zero opposite Howard Morris. Those animated roles led to cartoon stardom a year later in Hanna-Barbera’s Magilla Gorilla opposite Howard Morris.
All this is before his better-known, non-Army TV roles—appearing periodically as Sam the butcher in The Brady Bunch and Archie’s buddy Barney Hefner in All in the Family and Archie Bunker’s Place.
Sam gets bypassed in this feature story about Melvin on the Associated Press wire, June 6, 1981.
Allan Melvin: From Al the Plumber to Barney Hefner
By JERRY BUCK
AP Television Writer
LOS ANGELES (AP)— Allan Melvin has played Archie Bunker’s best friend since 1972, but it didn’t start off as a chummy relationship.
The very first time Melvin appeared on “All in the Family,” it was not as Barney Hefner, best friend, but as Sgt Pete Pulaski of New York City’s finest.
“The fun of that episode was that Archie came down to the police station and was making remarks about the Polish,” he recalled. “Somebody says, ‘Oh, yeah, tell that to Sgt. Pulaski’ — and I throw Archie into the can.”
It was a few months after that that Melvin was reincarnated as Barney Hefner. He remained with the CBS show when it was changed to “Archie Bunker’s Place,” and only Carroll O’Connor, has been with the series longer.
Melvin, who got his start as a stand-up comic and mimic and then played on Broadway in “Stalag 17,” has had a long and profitable career in television as the foil to the leading man.
A lot of that time was spent in uniform. On “The Phil Silvers Show” he was Cpl. Henshaw, who was Sgt. Bilko’s partner in his attempts to bilk the other soldiers. He was Dick Van Dyke’s old Army buddy on his show and Sgt. Hacker on “Gomer Pyle.” He also had recurring roles on “The Joey Bishop Show” and on “The Andy Griffith Show.”
“I went in the same season from Pulaski to Barney Hefner,” he said “I think thy make allowances for the fact that the audience will accept certain changes I guess they figure since it was a one-shot I wasn’t that established I’ve been Barney ever since.”
Melvin recalled that during the making of “The Phil Silvers Show” in New York, the technical adviser assigned to the show was a captain named George Kennedy.
“He would beseech Nat Hiken for a role,” he said. “Finally Nat made him an MP and let him stand by the door and wear a helmet. He was thrilled. Did I ever think he’d become an actor? No way.” Kennedy, of course, not only became an actor, but went on to win the Academy Award as best supporting actor.
Melvin is also well known as Al the Plumber, a character he has played for 14 years on the Liquid Plumber commercials. Less well known is the fact that he does many cartoon voices. He has been the voice of Bluto on the “Popeye” cartoon for the past four years. He’s also done the voice on “Magilla Gorilla” and has done many impressions for “The Flintstones.”

Few characters on television ever seem to have jobs, but Barney Hefner is a bridge inspector. Not that he ever works at it. “He never really inspects any bridges,” said Melvin. “He just says they’re all unsafe. That’s how he can spend so much time at Archie’s Place.”
As Archie’s oldest friend they are very similar. “He’s very much like Archie in his thinking and his values. But not to the extreme that Archie goes. He’s more temperate.”
Melvin was born in Kansas City, but was raised in New York and New Jersey. He and his wife now divide their time between their home in Brentwood and one on Monarch Bay in Laguna. He also spends much of his spare time on the golf course.
His own oldest and closest friend is author Richard Condon, who wrote “The Manchurian Candidate.” Condon wrote an early children’s record that Melvin recorded and wrote a night club act for him. It was that night club act that caused the producers of “Stalag 17” to alter the role of Reed to fit Melvin’s background and his act.
27 years later, the same wire service led off his obituary with his time consorting Alice the maid where “his place in pop culture will be fixed.” Brady Bunch fans had now grown up to pen newspaper obits. Irving the Unemployed Horse was forgotten.
We haven't forgotten. If you are interested in hearing Melvin narrating the story of Irving, someone had digitised it. Listen below.