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. (ENT: "Demons", "Terra Prime")

Daniel Greaves was played by Peter Mensah.