Clive's ex-wife, Margaret Drabble, is writer A. S. Byatt's sister.
Clive was in the unusual late-night comedy show Dig This Rhubarb. The show involved a panel discussing current 'hot' topics, but their arguments were founded in references to the topic in classical literature.
In 1988 Clive appeared in the film Giovane Toscanini, Il, about the conductor Arturo Toscanini, which was released in the U.S. as Young Toscanini.
His first movie role was in the 1965 British film Catch Us If You Can, which was released in the U.S. as Having A Wild Weekend.
Clive's first filmed acting role was in the 1965 TV mini-series War Of The Roses, a collection of four of William Shakespeare's plays.
Clive is the uncle of the actress Julia Swift.
In 2007 Clive began touring with his own stage show, entitled Richard Bucket Overflows: An Audience With Clive Swift.
Clive is a very talented songwriter, with many of his songs appearing in his stage show.
Clive appeared in the 1972 British horror film Death Line, which was distributed as Raw Meat in the US.
Clive appeared in the radio adaptation of the Russian novel, by Ivan Goncharov, Oblomov, playing the role of the Doctor.
Clive has a brother, David, who is also a fairly well known actor.
Clive's son Joe Swift is the host of several British gardening shows.
Clive has two sons, Adam and Joe, and one daughter, Rebecca.
He was married to novelist Margaret Drabble from 1960 to 1975.
Clive starred in the 1982 British mini-series The Barchester Chronicles, produced by the BBC.
Clive was the director for the Royal Academy of Dramatic Art.
Clive attended both Clifton College and Gonville and Caius College, Cambridge, where he read English literature.
Clive: I've been an actor since 1959, and I've done a hell of a lot of television over the years. It's amazing how much some of the fans know. I thought they knew more about me and what I did than I knew about myself!
Clive: [On what he would have done if he wasn't an actor] I often wonder what the hell else I could've done. I suppose I would've tried to teach somebody something, God forbid.