Warren Derosa is an English actor who played Rob Hawthorn from February 1996 until the character's supposed death in October 1998. He returned to the role in September 1999 and left when the character was killed off in a bus explosion on Millenium Eve. He also played Rob in the 1998 spin-off DVD, Hollyoaks: Off on One. Warren had auditioned for the role of Tony Hutchinson in 1995, but the role was cast to Nick Pickard.
His other credits include Charmed, Huff, CSI: NY and American Dad!.