Gerald Morris, also known by his alias "Deimos", is an Attacking Operator featured in Tom Clancy's Rainbow Six Siege, introduced in the Operation Deadly Omen expansion. A former Rainbow operator turned international terrorist, he is revealed to be the mastermind behind the assassination of Masayuki Yahata and the one who orchestrated the conflict between Rainbow and Nighthaven.

Deimos, the villain of Raimbow Six Siege. 

Dominic Brunsmeier from Rainbow Six Siege 