When RoboCop plays a recording of Jones' confession at an OCP executives meeting, Jones panics and takes the CEO hostage, demanding a helicopter to make his escape. The Old Man fires Jones, invalidating his Directive Four protection. RoboCop thanks the Old Man and shoots Jones, sending his body flying through a boardroom window.

A budget of one million dollars was allotted for the completion of the suit, making it the most expensive item on the set. A total of six suits were constructed: three intact and three showing battle damage.

Before Peter Weller was cast, Rutger Hauer and Michael Ironside were considered for the role. However, each man's large frame would have made it difficult for him to move in the cumbersome RoboCop suit, which had been modeled on hockey gear and designed to be large and bulky. Weller won the role both because director Paul Verhoeven felt that he could adequately convey pathos with his lower face, and because Weller was especially lithe and could more easily move inside the suit.

Stephanie Zimbalist, who at the time was one of the stars of the television series Remington Steele, was originally cast as Anne. NBC had canceled Remington Steele in 1986, leaving the stars free to accept other roles, but an upsurge of interest in the show saw the network exercise an options clause, which forced Zimbalist to withdraw from RoboCop and left the role to Nancy Allen.