Oleg Petrovsky

Oleg Petrovsky is a Cerberus general introduced in Mass Effect: Invasion. Petrovsky is an experienced and formidable soldier, but is also well-versed in military history. Viewing the path that humanity is taking and the looming danger of the Reapers in that context, Petrovsky is concerned about humanity's future and strongly supportive of Cerberus' plans.

Mass Effect: Invasion
As Aria T'Loak defends Omega from the Adjutants, hostile Husk-like creatures unleashed on the station by a Cerberus transport ship, the Illusive Man dispatches General Oleg Petrovsky and Colonel Ashe to aid her in containing the threat.