Conversation so far:
Was I dood it! a sketch by him?
Junior would say things like, If I dood it, I gets a whipping., followed moments later by the statement, I dood it!“
who played junior?
Skelton starred in a 1943 movie of the same name, I dood It!, but did not play Junior in the film.
Where did Red Skelton perform?
Skelton went on the air with his own radio show, The Raleigh Cigarette Program, on October 7, 1941.
What acts did Red Skelton perform on The Raleigh Cigarette Program?
Skelton introduced the first two of his many characters during The Raleigh Cigarette Program's first season.

Question: Who were those characters?
Self-contained rewrite: Who were those characters Skelton introduced during the Raleigh Cigarette Program's first season?