On the U.S. TV sit-com "The Dick Van Dyke Show", who was Mr. Henderson?

On the U.S. 1961 - 1966 TV sit-com "The Dick Van Dyke Show, the actress, Rose Marie, played Sally Rogers. She was a female comedy TV writer (not a secretary or wife) on the show. From time to time, she takes comfort in her ginger tom cat ( Mr. Henderson) who is played by veteran cat actor Orangey. On "The Dick Van Dyke Show" episode "Where You Been, Fassbinder?" (1962), the public is given many interesting facts about Mr. Henderson during the fitting television broadcast.

The key point of interest regarding Mr. Henderson is that he is Sally’s confidant when she is feeling sad, depressed, and some form of heartbreak especially about the lack of men in her life.