GarthAlgar, character in the Wayne's World series
Garth aka Aqualad and Tempest, character in DC Comics
GarthFitzgerald IV, character on TV's "Supernatural"
Garth Stubbs, character on British TV show "Birds of a Feather"
Garth Marenghi, character created by comedians Matthew Holness and Richard Ayoade
"Garth," British comic strip and its main character
Garroth, character in Aphmau's YouTube series