I am a retired Air Force Public Affairs guy, so the list for me can be a bit long. I'll say it in this way:
10 Congressional Medal of Honor winners
Two men who walked on the moon - one drove the dune buggy that's still there.
Two men the Wright Brothers taught to fly
One president of South Korea
One American Vice President (Joe Biden - saw him a lot in a Home Depot here when he was a U.S. Senator)
Way too many prisoners of war from WWI,II, Korea and Viet Nam
The Dali Llama - the one in exile
Face-to-face with North Korean Guards at the 38th Parallel
Face-to-face with East German Guards at the Berlin Wall
Chubby Checker - when is was chubby and not well known.
Gladys Knight and the Pips - also not yet well known.
Jimmy Doolittle - of Doolittle's Raid over Tokyo, WWII
One man who fought in the Spanish-American War
People who survived the Holocaust (met them while I was stationed in Germany in the 1970s)
Emeril LaGasse
Morey Amsterdam
Dolly Parton -- she was on a USO tour in the early 1970s in W. Germeny, as was Morey.
Bob Hope - his USO show while I was in South Korea - I think it was 1970, maybe 69.)
A Chinese journalist who escaped from Bejing (sp?) - he was just writing about technology stuff.
The son of the General who broke away from mainland China and moved his followers to Taiwan to form a Communist-free government.
The Queen of Holland (in the 1970s)
The Earl of DeLaWaare (in 1987)-- This state's name where I live (Delaware) comes from his legacy.
And, my favorite -- Soupy Sales!