Bob Newhart, an American stand-up comedian, and actor is well-known for his deadpan delivery and a slight stammer which is his trademark. He made numerous appearances on the “Tonight Show” with Johnny Carson, captivating audiences with his dry humor and unique comedic sketches.
As of my knowledge cutoff in September 2021, I can’t find any specific reference to Bob Newhart doing a German impression on The Tonight Show with Johnny Carson. Bob Newhart is known for his monologues and situational humor rather than impressions or character work.
If you’re referring to a specific episode or skit, you might have better luck finding more detailed information or even a video of the appearance by searching for it specifically online or on platforms where episodes of The Tonight Show with Johnny Carson are available to stream.