Muscat initially found work as a kitchen porter and then as a stoker at an RAF base in Malta.

Moving into television, he played a Chumbley robot in the Doctor Who serial Galaxy 4 (1965), played the part of a clown in the ITV series Emergency – Ward 10 and appeared as the Queen's Servant in the BBC television adaptation of Alice in Wonderland (1966).

During his later years, Muscat lived alone and virtually penniless in a basement flat in North London.

He found it difficult to find acting work, and to supplement his income he made ornate birdcages by hand.

[citation needed] Each year, on 10 October a small group of enthusiasts dubbed the "Friends of Angelo Muscat" (FOAM) celebrate his life.