Give some stream of consciousness and then the answer. Bert Lahr (August 13, 1895 -- December 4, 1967) was an American actor of stage and screen, vaudevillian and comedian. Lahr is best known for his role as the Cowardly Lion, as well as his counterpart Kansas farmworker Zeke, in The Wizard of Oz (1939). He was well known for his explosive humor, but also adapted well to dramatic roles and his work in burlesque, vaudeville, and on Broadway.

Based on this passage, who was the actor that played the cowardly lion?
The relevant sentence in the passage is: Lahr is best known for his role as the Cowardly Lion, as well as his counterpart Kansas farmworker Zeke, in The Wizard of Oz (1939).
Therefore, the answer is Bert Lahr.