Daniel Greaves

From Memory Alpha, the free Star Trek reference

Daniel Greaves was a Human of the Sol system in the 22nd century. Greaves was a member of the Terra Prime movement, and John Frederick Paxton's personal assistant, confidant and enforcer.

When Paxton questioned Mercer's loyalities, he sent for Greaves, and Mercer was later found dead. Greaves accompanied Paxton to Mars and assisted him in his attempt use the verteron array as a weapon against Starfleet Command. When Commander Tucker attempted to shut down the array, he was shot and wounded by Greaves. Moments later, Greaves was himself felled by multiple phase-pistol blasts from Archer, Reed and Mayweather. He was presumably stunned and taken into custody. (ENT: "Demons", "Terra Prime")