G is for... Groom, Roman

Roman Groom was an American member of the international crew of Bowie Base One - the first human settlement on the planet Mars. He operated the base's service robot, which was nicknamed Gadget, and he had programmed it to say its name - which the Doctor found to be slightly irritating. He had arrived on the planet for a look around, unaware that the date of his arrival was that on which the base was destroyed with all hands, according to the history books. The crew had inadvertently released a waterborne parasite known as the Flood, which had lain dormant for centuries in the Martian ice-field on which the base had been established. The crew fell to the contagion one by one - including Roman, who had been hit on the cheek by a single droplet of water.
All the infected crew were destroyed when base commander Adelaide Brooke activated the self-destruct mechanism.

Played by: Michael Goldsmith. Appearances: The Waters of Mars (2009).