|Voiced by||Bob Sherman|
Bradley Vaughton was a veteran of the First Vektan War and was a friend of ISA soldier Dirk Templar. After Dirk died in the war, Vaughton felt responsible to look after Dirk's son Jan Templar, whom he sees him as his godson.
During the Helghast invasion of Vekta, Vaughton's forces were overwhelmed by the sudden attack of the Helghast Third Army. As the SD Platform had suddenly failed to stop the Helghast, Vaughton was awaiting the security key to override the platform's control failsafe before heading to the platform by shuttle. Vaughton summoned Templar to his command base and assigned him to find Colonel Gregor Hakha, an infield operative whom Vaughton refers who possessed vital information to the ISA. Soon after, the command base came under attack and Vaughton ordered for evacuation before having Templar to locate the security key.
Vaughton was later captured by the Helghast until he was rescued by Templar, Shadow Marshal Luger, and Rico Velasquez. He was then given the security key by Templar and commend Templar's group to continue with their mission in finding Hakha before departing for the SD Platform. Upon arriving at the platform, Vaughton met with General Stuart Adams and together override the failsafe. After doing so, however, Helghast soldiers under General Joseph Lente stormed the facility and Adams revealed his treachery to Vaughton, who is then gunned down by a Helghast trooper.
Adams posthumously framed Vaughton as a traitor for taking over the SD Platform in order to hinder Vaughton's allies, including Templar and his squad, and further sowing chaos among the ISA's ranks. Templar's squad would eventually avenged Vaughton's death as they stopped Adams from destroying the UCA reinforcement fleet and disabled the platform.
Vaughton had respect and trust from his troops due to his professional nature and high moral fiber, most notable of these troops was Jan Templar.
Training him with all the required military skills to exceed his father's potential, Templar matured into a deeply promising soldier, far more intelligent tactically and morally unwavering than other ISA soldiers. This forged a strong father-son bond between the pair illustrated during the events of Killzone where Vaughton entrusted Templar to guide a small unit through Vekta, triggering a famous fight from Templar.
Unlike the traitors such as Stuart Adams or Dwight Stratson, and even the loyal but morally dubious Alex Grey, Vaughton showed no moral failings and likely would've continued to serve as one of Vekta's greatest generals, if he had not been killed.
- Vaughton bears a striking resemblance to Supreme Allied Commander Dwight D. Eisenhower.