Verhoeven gained a reputation for verbal aggression and unsociable behavior on set, although Smith said that Verhoeven never yelled at the actors but was too engrossed in filming to be sociable. Cox and Allen both spoke fondly of Verhoeven. Weller was to be referred to only as "Murphy" or "Robo" and Smith was hesitant to speak to him as a result. However, they developed a friendship, and the rule was ignored. Weller spent his time between filming with the actors who played his enemies, including Smith, Ray Wise, and Calvin Jung, who maintained healthy lifestyles that supported Weller in his training for the New York City Marathon.