A green-haired drill thrall assigned to train Kirk on Triskelion, who learns from him about love and freedom.
Shahna is one of the drill thralls on Triskelion, gladiators kept to fight for the amusement of the Providers, who wager on their contests. In The Gamesters of Triskelion she is assigned as Kirk's drill thrall, responsible for training him and keeping him in line.
Kirk wins her trust partly through kindness and partly as a tactic, and she becomes curious about the stars, love and freedom, ideas her life has never allowed. When Kirk wins his wager with the Providers, the thralls are freed, and Shahna watches him leave hoping to learn more. She was played by Angelique Pettyjohn.