Vivian Campbell

Campbell began playing guitar at the age of 12 with a Telecaster Thinline and Carlsbro Stingray amp. When he was 15, Campbell joined Teaser, which went on to become Sweet Savage, a NWOBHM band. In 1981 they released an EP consisting of four BBC Radio sessions and their first single, "Take No Prisoners". The band's song "Killing Time" was later covered by Metallica as a B-side for their "The Unforgiven" single, and was included on Metallica's Garage Inc. covers album. Campbell left Sweet Savage in early 1983 to join Dio after guitarist Jake E. Lee was offered Randy Rhoads's spot as Ozzy Osbourne's lead guitarist in December 1982.

Campbell currently lives in New Hampshire and has two daughters with ex-wife Julie Campbell. After getting divorced, Campbell married his longtime girlfriend Caitlin Phaneuf on 4 July 2014. He also plays football regularly with Hollywood United F.C., a team composed mostly of celebrities and former professional football players. On 10 June 2013, Campbell announced that he has Hodgkin's lymphoma. Though he announced in November 2013 that he was in partial remission, in June 2014 he took that back saying the statement was premature. He had stem-cell therapy in late 2014, and by October 2015 he announced that while the cancer is still there he was doing much better using immunotherapy, undergoing treatment every three weeks with pembrolizumab. In 2023, he announced that the pembrolizumab was waning in effectiveness and chemotherapy had been added to his recent treatments.