Gorilla Grodd is one of the Flash’s oldest foes ... ranging from dominating Central City to conquering the world. The Flash TV show introduced Grodd as a sympathetic yet terrifying villain ...

13. Grodd Friended Me - Barry conducts an experiment that goes awry and puts him directly in Gorilla Grodd's path, but is surprised when Grodd asks for his help against another villain - Solovar ...

13. Attack on Gorilla City - Barry and the team travel to Earth-2 to rescue Harry from Gorilla City, where they're captured and brought to Grodd, who claims he needs their help to stop Solovar ...