Who is Casey in GTA 5

Casey is an employee of Gruppe Sechs security working as a security van driver.

During the subtle approach to the mission The Big Score, Casey is one of the drivers in the Gruppe Sechs security van. Michael and Trevor, who are disguised as security guards in a vehicle in front of the vans, drop a spike strip causing them to halt in the Integrity Way tunnel.

All the drivers are lined up and Michael chooses Casey at random to assist them with the heist. Casey is forced to get into the Securicar with Michael and Trevor where he begins to panic. Michael tries to calm him down telling him that they’ll let him go once they have the gold secured. Michael and Trevor use Casey’s identification to get into the depository.

Once the gold is loaded into the security vans, Casey pretends to feel unwell and tells the manager he wants to stay back. Michael and Trevor order him to get back in the van, and they tell the manager that his illness is just a hangover. Later on, while securing the gold into the getaway cars, Trevor holds Casey at gunpoint threatening to kill him. Michael tells Trevor to put the gun down and hands Casey a gold bar, telling him that if he opened his mouth about any of this to anyone, they'll blame the entire thing on him. Casey agrees and runs away.

Casey is seen wearing the security uniform just like everyone else, with a protective helmet.

1. Surveying the Score
2. The Big Score (Subtle approach)

Q. How much was the gold bar that Casey got in The Big Score worth?

A. Considering the difference in the values of the entire loot of gold in both the subtle and obvious approaches to the mission, the value of a single gold bar in the game can be estimated at around $300,000.