Alan Reed (born Herbert Theodore Bergman; August 20, 1907 – June 14, 1977) was an American actor, best known as the original voice of Fred Flintstone on The Flintstones and various spinoff series. He also appeared in many films, including Days of Glory, The Tarnished Angels, Breakfast at Tiffany's, Viva Zapata! (as Pancho Villa), and Nob Hill, and various television and radio series.
Description above from the Wikipedia article Alan Reed, licensed under CC-BY-SA, full list of contributors on Wikipedia.
Eddie Colton
The Auctioneer
Fred Flintstone (voice)
Fred Flintstone (archive footage) (voice)
General MacGruder
Charlie
Self
Bandit Lawson
Park Commissioner Fiske
Joe Belasco
Councilman Jack Gramby
Uncle Leo
Capt. Otto Krauss aka Swenson (in credits)
Police Sergeant
Paul Trumbo
Boris (voice)
Reet
'Chick'
Ferguson
Sally Tomato
Fred Flintstone
Tomaso
Detective (uncredited)
Charbonneau
Pancho Villa
Colonel Fineman
Walter Godfrey
Big Bill (voice)
Puddles Podell
Fred Flintstone (voice - archive footage)
Harry Patullo
Fig King
Phil Haskell
Fred Flintstone
Professor Sigmund Heigner
George Kalecki
Fred Flintstone (voice)
Fred Feuerstein
Capitaine Gorecki
Detective (uncredited)
Al Wolfe
Sasha
Fred Flintstone (uncredited)
Ezra Liam Kennedy
Interviewee
Sergeant Diego
The Sultan (voice)
Narrator - Mechanic - Hitch-Hiker
Col. Lamartine (Confederate leader)
Jerome "JB" Cobb (segment Woman of Sin)
J.B Cobb
Tony - Barber
Dapper Jack Harrigan
Fred Flintstone
Capt. Otto Krauss aka Swenson
Big Dan Hennessy
Fred Flintstone (voice)
Narrator (Voice)
Self
Narrator
Narrator / Mechanic / Hitch-Hiker (voice)
Fred Flintstone (voice)
Harlow
Radio Voice #1 (voice)
Narrator
Self