A thrall of the Providers on the planet Triskelion who is appointed to train Lieutenant Uhura as a gladiator and later fights Kirk in the contest that decides the crew's freedom.
Lars is one of the drill thralls kept on Triskelion, where the disembodied Providers wager on combat between captives from many worlds. He appears in the second-season Original Series episode The Gamesters of Triskelion and was played by Steve Sandor.
When Kirk, Uhura and Chekov are abducted, the master thrall Galt assigns each a trainer. Lars is given Uhura and tells her he has also been selected for her, entering her cell at night; she fights him off, and he leaves complaining that it is not permitted to refuse selection.
He is one of the three thralls sent against Kirk when the captain stakes the Enterprise and its crew on a single combat against the Providers' champions.