Robert Eustice

Robert Eustice is known for both Red Alert games, one and two. During both of them, he plays General Monnage who is Carville's aide. It's not known if Robert Eustice played Monnage during Yuri's Revenge when he's reunited with Carville who survived his death from a Crazy Ivan that blew him up at the Pentagon at the end of a briefing for Operation: Mirage.

Command & Conquer: Red Alert
Eustice was chosen to play Monnage who in description is Carville's aide, advising an Allied Commander (Red Alert 1) during the Soviet invasion of Europe. Gunther Von Esling, the Supreme Allied Commander is helped by Monnage to push Soviet forces under Stalin and Gradenko out of Germany and Greece. After the Allied victory, Monnage comes to aid Carville later on.

Command & Conquer: Red Alert 2
Monnage is briefly seen during the briefing of Operation: Deep Sea where Carville, glad to have his office back tells the famed Allied Commander (Red Alert 2) to directly go to Pearl Harbor in defeating Vladimir's naval forces. After Carville was assassinated, Monnage was affected by the suicide bombing and was one of the key officers at Carville's funeral, becoming the Allied Commander's aide.