Gnarrk was a 17-year-old caveman whom Teen Titans Mal Duncan and Kid Flash encountered on a trip to the Stone Age. When a cavegirl whom Gnarrk liked became attracted to Mal, Gnarrk grew jealous and attacked the Titan, but in the scuffle the young caveman fell off a cliff and died.

Gnarrk was created by Steve Skeates and Nick Cardy, first appearing in Teen Titans #32. (1971)

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