Conversation so far:
What was the inspiration for the character Kramer?
The character of Kramer was originally based on the real-life Kenny Kramer, a neighbor of co-creator Larry David from New York.
Was Cosmo Kramer always known as "Kramer"?
Kramer's character was originally known as "Kessler..

Question: Why was the name changed to Kramer?
Self-contained rewrite: Why was the name Kessler changed to Cosmo Kramer?