He was not a big star. He was on Broadway and played a cranky old man, a character he brought to the screen as well. Charles Sellon is a Bit Actor.
I first noticed him in It's a Gift (1934) starring W. C. Fields. He played a cranky old blind man, who almost destroyed Fields' shop. But that came at the end of his career.
Harry Myers. I talked about Myers when I covered Chaplin's City Lights (1933) a few days ago. When you look at the interaction of the early stars, you begin to see how small Hollywood was back in the silent era. I bet everyone knew everyone.
He made three movies with Hoot Gibson (1892 - 1962). I counted about 35 silent films on his list of 109 roles. Sellon's first talkie was Bulldog Drummond in 1929 starring Ronald Colman (1891 - 1958).
Most of the films he made are of little consequence.
Vagabond Lover (1929) with Rudy Vallee
Tom Sawyer (1930) with Jackie Coogan
Six films with Jack Oakie
Bright Eyes (1935) with Shirley Temple
But he did get to work with the likes of Marlene Dietrich, Paul Muni, Lionel Barrymore, Barbara Stanwick, and so many other great actors and actresses. Watch an old movie, pick out almost any uncredited player, and look them up. They made the movies what they are.