Robert Tomlinson was a Starfleet lieutenant who served in the phaser control room of the USS Enterprise in 2266.
In that year, Tomlinson was engaged to be married to Angela Martine, a fellow Enterprise crewmember. The wedding ceremony was interrupted, however, when the Enterprise came under attack by a Romulan Bird-of-Prey, necessitating all crewmembers reporting to battle stations. Later, Tomlinson was left as the only crewmember in the phaser room, when all others assigned there were injured due to radiation burns, although he was later supplemented by Lieutenant Stiles. Later, as Tomlinson and Stiles were working in the phaser room, a phaser coolant leak incapacitated both of them in the midst of another Romulan attack. Although Lieutenant Commander Spock was able to pull them both from the phaser room, Tomlinson succumbed to his injuries and died, the only casualty of the conflict.