Robert Cory "Bob" Bryar (December 31, 1979 - November 2024) was an American musician and sound engineer best known as the drummer of the rock band My Chemical Romance from 2004 until his departure in 2010. Bryar joined the band in 2004, replacing former drummer Matt Pelissier shortly after the release of their second studio album Three Cheers for Sweet Revenge. He performed on all of the subsequent releases in support of the album, as well as the band's commercially successful concept album, Th ...