Volatile and animalistic, Sergeant Simian doesn't seem to care about anything but fighting and fulfilling the duties of his employer - whoever that might be at the time. He is blunt, focused, and aggressive, though not significantly refined and with no apparent sense of humor due. He appears to have once had a powerful loyalty to Mammoth Mogul, but this may no longer be the case given Mogul's abandonment of his minions. While a powerful force, he is careless in battle and often hits Drago Wolf.