He was Highly entertaining.
And an intellectual
The film Gigot is a lost classic, Gleason never utters a word in the entire film, yet he captivates.
https://www.youtube.com/watch?time_continue=20&v=t1hYJs2vctU
Remember Silent Movie from Mel Brooks?
Among the film’s most famous gags is the fact that the only audible word in the film is spoken by Marcel Marceau, a noted mime.
It was hilarious.
https://en.wikipedia.org/wiki/Silent_Movie