A Weyland Corporation employee, sent to monitor the expedition. Theron described the character as "a suit who slowly sheds skin through the film", and also as "somewhat of a villain ... [who] definitely has an agenda". She stated "Vickers is pragmatic, and desperately wants to control the situation." Scott wanted the character to lurk in the background of scenes watching other characters instead of being the focus. Theron stated that it helped layer her character because "you're just so suspicious of her, instantly." The similar appearances and mannerisms of Vickers and David were intended to raise the possibility that David was based on Vickers's DNA, or that Vickers is an android herself. After Theron's casting, she developed three new scenes with Scott and Lindelof to expand her character. Physical action scenes were an issue for Theron because of scenes that involved her running through sand in 30-pound (14 kg) boots, and her cigarette habit. Theron was intended to portray Shaw, but a prior commitment to Mad Max 4: Fury Road prevented her involvement. When that film was delayed, she was able to rejoin Prometheus. Michelle Yeoh and Angelina Jolie were considered for the role.