Born in 1932 in New Cross, south east London. He is father of stand-up comedian and voice-over artist Dominic Frisby. He has 4 grandchildren.

There's A Girl In My Soup was a long-running comedy opening in 1966 at the Globe Theatre (now called the Gielgud Theatre) and running for over 1,000 performances, then becoming a worldwide smash hit with long runs on Broadway, Paris, Berlin, Stockholm, Sydney, Rome, Vienna, Prague and many other places. It is still constantly played wherever there is theatre. His script of the equally successful 1970 film, which starred Peter Sellers and Goldie Hawn, won the Writers' Guild of Great Britain Award in 1970 for the Best British Comedy Screenplay.

His other stage plays include The Subtopians (Arts Theatre 1964), The Bandwagon (Mermaid Theatre 1969), It's All Right If I Do It (Mermaid 1977), Seaside Postcard (Young Vic 1978) Rough Justice (Apollo Theatre 1994) Funny About Love (two UK national tours 1999-2000). All his plays are published by Samuel French.He has also written many plays for television, two of which were nominated for awards. His comedy series include Lucky Feller with David Jason (1976) and 26 episodes of That's Love with Jimmy Mulville, Diana Hardcastle, and Tony Slattery, (1988—92) which won the Gold Award for Comedy at the 1991 Houston International Film Festival.

His radio play Just Remember Two Things: It's Not Fair And Don't Be Late for BBC Radio Four won The Giles Cooper Award and achieved some sort of record by being broadcast ten times in a few months on Radio 4 and BBC World Service.

A musical stage version of his radio play was produced at the Queen's Theatre, Barnstaple in 2004 under the title Just Remember Two Things... An option for the West End has been taken up under the title Kisses On A Postcard. The musical has now been published as a book.

His first book was Outrageous Fortune, an autobiographical story about his fifteen years as a litigant-in-person in the High Court following his spectacularly awful divorce and custody battle. Outrageous Fortune, both hilarious and nightmarish, created shock waves throughout the legal world.

His second book is Kisses On A Postcard , published by Bloomsbury. It tells of his experiences as an evacuee as a 7-year-old from London to Cornwall during World War Two. It is based on the musical of the same name.

Terence has worked extensively for 40 years as actor, director and producer. He has played leads and directed in the West End, Young Vic and all over the country. His most noted presentation was the South African, multi-award-winning WOZA ALBERT! at the Criterion Theatre in 1983, subsequently off-Broadway and worldwide.

Terence is currently working on a novel.

Together with his son, Dominic, and Jeremy James Taylor, founder member of the National Youth Music Theatre, he has formed a company, Vackies Ltd, whose aim is to raise the necessary funds and present Kisses On A Postcard, the stage version of his radio drama Just Remember Two Things: It's Not Fair And Don't Be Late, in London's West End.

He was one of the earliest members of the father's rights and support group Families Need Fathers.