It's none other than...Captain Caveman. He is from a Saturday morning Hanna-Barbera cartoon. The show was a knock-off of Scooby-Doo and it featured Captain Caveman and three teenage girls, Brenda, Taffy and DeeDee. The show was called Captain Caveman and the Teen Angels. Captain Cavemen was voiced by the legendary Mel Blanc who did the voices of the Looney Tunes. Many years after this show aired I did a brief stint working at a steel mill and one of my co-worker's nickname was Captain Caveman. I drew him with a Faber Castell Pitt pen and colored pencils.