Rocky Ratrock is the school bully and main antagonist in The Flintstone Kids. He along with his friends, Tarpit Tommy, Janet Granite, and Flab Slab, as well as his dog, Stalagbite, bully the kids of Bedrock Elementary School, including Fred and the gang. In the episodes Rocky's Rocky Road and Bedrock Bully Bash, he did make an attempt to be nice to Fred and the others. His father appears in "Grandpa for Loan" and his mother is seen in "Rocky's Rocky Road".
- His design and personality is used for Zar the Troll King in Captain Planet Kid and the gnomes.