Irving Lahrheim, known professionally as Bert Lahr, was an American stage and screen actor and comedian. He was best known for his role as the Cowardly Lion, as well as his counterpart Kansas farmworker "Zeke", in the Metro-Goldwyn-Mayer adaptation of The Wizard of Oz. He was well known for his quick-witted humor and his work in burlesque and vaudeville and on Broadway.
From Wikipedia (https://en.wikipedia.org/wiki/Bert_Lahr) under Creative Commons Attribution CC-BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0/legalcode)
Bert Lahr, Tyler Brook, Ralph Sudam, Elivda Rizzo, Bobby Watson, Judy Garland, Oliver Smith, Frank Morgan, M-G-M Studio Chorus, Jack Haley, Ray Bolger, Lorraine Bridges, Lois January, and Charles Irwin