|Role:||Commander of the British Empire, Leader of the Circle of Ossus|
|Cause of death:||Death in an avalanche (by John Black)|
|Affiliation:||Circle of Ossus|
|Voiced by:||Neil Dickson|
|Games:||Age of Empires III|
|First game:||Age of Empires III
|Last game:||Age of Empires III
"An arrogant British nobleman, Warwick considers himself a refined gentleman, and looks down his nose at the colonists he was sent to govern. Uninterested in negotiations or diplomacy, he prefers to use force and intimidation to achieve his goals. Warwick's parents drowned under mysterious circumstances; it's rumored he may have had a hand in their demise."
Warwick is the Main Antagonist in Act II: Ice and an English aristocrat. Born in England, he was rumored to be behind the death of his parents but considers himself a refined gentleman. Though serving as a British military commander, Warwick is also known as a member of the Circle of Ossus, becoming its leader by the 1750s. Uninterested in diplomacy, his method of government relies on intimidation to control the populace for which it is responsible.
Learning that the Black family, the rivals of the Circle of Ossus, is present in the Americas, Warwick attacks the colony governed by Stuart Black, the fourth son of Morgan Black. Stuart's nephew, John, a mercenary leader allied with local natives, retaliates and defeats the troops Warwick leaves behind at the colony. John realizes that Warwick has already departed with Stuart Black, whom Warwick thinks knows of the location of the legendary Fountain of Youth.
When the Seven Years' War begins, Warwick serves alongside Colonel George Washington, who becomes suspicious of the general. Believing Warwick a traitor, Washington summons John Black, who allies himself with Washington and captures Warwick's bases in the Great Lakes. Meanwhile, Warwick and the Circle's elite army, the Boneguard, cross the Great Plains attempting to assassinate the chiefs of various Lakota tribes. Failing in this, Warwick retreats to his western base, which is then destroyed by John and his Iroquois friend Kanyenke.
Warwick escapes to the Rocky Mountains to receive Russian reinforcements, who are marching through a mountain pass. The Russians, assisting the Circle, hope to take advantage of the Seven Years' War to seize territory in the Americas. Attempting to prevent their advance, Black plants explosives around the mountain pass, intending to bring down the surrounding rock on the Russian column.
Warwick and a party of Boneguard encounter Black as he sets the final explosives. Warwick orders his men to kill Black, who dodges the Boneguard and detonates the explosives, killing himself along with Warwick and the entire Russian army, halting the Circle's progress.
Warwick wields a sword and a pistol, and he is able to collect Treasures. His fighting unit can be encountered in two scenarios, "Respect" and "Warwick's Stronghold".