One of the Kelvans from the Andromeda Galaxy who seize the Enterprise, placed in charge of engineering and eventually incapacitated by Scotty in a marathon drinking session.
Tomar is a member of the Kelvan expedition led by Rojan in the second-season Original Series episode By Any Other Name. He was played by Robert Fortier.
The Kelvans, who have taken human form, capture the Enterprise for the three-hundred-year voyage back to Andromeda and reduce most of the crew to small blocks of chemicals. Tomar takes over the engine room, keeping watch on the modified drive.
Realising that the Kelvans are unused to human sensations, Kirk's officers each set out to overwhelm one of them. Scotty invites Tomar to his quarters and works through his collection of spirits, from Saurian brandy to a bottle he can only describe as green. Tomar finally slides under the table, followed moments later by Scotty himself.