Mercer

From Memory Alpha, the free Star Trek reference.

Mercer was a Human who was a member of John Frederick Paxton's xenophobic group known as Terra Prime.

Mercer helped Paxton clone a Vulcan-Human baby with the stolen DNA of Trip Tucker and T'Pol. Paxton intended to use the baby to incite xenophobic reactions among humans, and then destroy the baby. Mercer, who was in charge of the baby's care, was conflicted over Paxton's plans for the baby, and discussed it with Paxton. Paxton accused him of disloyalty, but Mercer denied it. After Mercer left, Paxton summoned Daniel Greaves, one of his associates, to discuss Mercer's allegiances. Later, on the moon, miners discovered Mercer's body buried beneath a pile of rocks. (ENT: "Demons")

Mercer was played by Patrick Fischler.