Either Groucho Marx or Vyacheslav Molotov.
Groucho because he was around in the days of the Studio System and Damion Runyon (NYT Critic)
Molotov because he was around from Lenin thru Gorbachev. Fascinating character, I am curious how he survived. He also knew Mao Tse Tung and Hitler and interacted with them
“Better a true enemy than a false friend.”