"Brad" in Japanese would still be "Brad," but spoken with native Japanese phonemes. Thus, it'd become 'Buraddo,' written: ブラッド
It was name after the boy Brad Damin Chong.
'Brad Pitt' in Japanese is ブラッド・ピット (buraddo pitto).
Brad Heffler's birth name is Brad Heffler.
Brad Bode's birth name is Brad A. Bode.
Brad Roach's birth name is William Brad Roach.
Brad Raider's birth name is Brad Evan Raider.
Brad Radke's birth name is Brad William Radke.
Brad Pinkert's birth name is Brad R. Pinkert.
Brad Renfro's birth name is Brad Barron Renfro.
Brad Trumbull's birth name is Brad Raymond Trumbull.
Brad Paisley's birth name is Brad Douglas Paisley.
Brad McCrimmon's birth name is Byron Brad McCrimmon.