Roy Bittan
Credited as Roy Bitten
Roy J. Bittan (born July 2, 1949) is an American keyboardist, best known as a member of Bruce Springsteen's E Street Band, which he joined on August 23, 1974. Bittan, nicknamed The Professor, plays the piano, organ, accordion and synthesizers.
Aside from his membership in Bruce Springsteen's band, Bittan has played on several dozen albums as a session musician primarily for notable singer-songwriters, and rock and pop artists.