Yes -- for example, he was a session player for the classic Beach Boys album Pet Sounds.
That’s not all, even with the Beach Boys:
” he was touring the South as part of the Western Wranglers. In 1958, he moved to Los Angeles to become a session musician. He was part of the 1959 line-up of the group the Champs, famous for their instrumental “Tequila”.
Campbell was in great demand as a session musician in the 1960s. He was part of the studio musicians clique known as “the Wrecking Crew”, many of whom went from session to session together as the same group. In addition to Campbell, Hal Blaine on drums, Tommy Tedesco on guitar, Leon Russell on piano, Carol Kaye on bass guitar, Al Casey on guitar were part of this group of session musicians that defined many pop and rock recordings of the era. They were also heard on Phil Spector’s “Wall of Sound” recordings in the early 1960s.
He was a touring member of the Beach Boys, filling in for Brian Wilson in 1964 and 1965. He played guitar on the group’s Pet Sounds album, among other recordings. On tour, he played bass guitar and sang falsetto harmonies.”
—from Wikipedia article about Glen.
Note: The Wrecking Crew were the core musical group for BB albums, most especially Pet Sounds and the Smile sessions.