Prof. R.J. Gumby, crooning
Prof. R.J. Gumby is a Gumby who croons while hitting himself on the head with giant red bricks. He is a major in historianism. He was initially played by Graham Chapman but portrayed in later episodes by Michael Palin. He also has a friend and they both made a lot of Gumbys angry when R.J. Canning asked them a question about The Battle of Trafalgar, such as L.R., F.H. and Enid.