[5] His final exhibition, "Jonathan Adams in Wonderland", opened at the Riverside Studios in London, the April before his death.

He is also well known for portraying Dr. Everett Von Scott in the 1975 film version of The Rocky Horror Picture Show.

[3][6] He played a number of roles in British theatre, TV and film, including work with The Actor's Company and at the Old Vic.

[2] On television, he played Adam the shepherd in the TV mini-series Jesus of Nazareth (1977), and Reverend Quiverful in the BBC serial The Barchester Chronicles (1982).

A portrait of Adams by British artist David Gommon is displayed on the BBC Paintings online gallery.