Wally Cox and Marlon Brando shared a Midtown West apt. in NYC during
the early 1950’s. Cox eventually moved out because he hated Brando’s pet raccoon Russell. “Marlon and Wally were 9-year-old boys living in Evanston, Illinois when their parents introduced them — Marlon’s mother and Wally’s stepfather were friends in Chicago, where the stepfather worked for NBC. The boys became fast, albeit unlikely, friends, said Eleanor Robinson, Cox’s sister. “Marlon was kind of a rough little boy,” she said. “He tied Wally to a tree one afternoon and then left him. I’m surprised they remained friends, but they did.”–LA Times
Mr. Peepers starred Wally Cox as science teacher Robinson Peepers.
The pioneering 1950’s (1952-1955) sitcom also starred Tony Randall and Jack Warden. Cox would forever after be typecast as the ultimate nerd.