Guy Johnston was born in 1981 into a family of musicians, and followed his two elder brothers into the Choir of King's College, Cambridge. He began cello lessons at the age of five, and was awarded a scholarship to Chetham's School of Music in 1994. During this time he participated in regular masterclasses with Ralph Kirschbaum at the Manchester Cello Festival, and also with Steven Isserlis in the International Musicians Seminar at Prussia Cove. A committed recitalist and chamber musician, Guy performs at major music festivals at home and abroad and broadcasts regularly for BBC Radio 3 and Classic FM. In November 2002 he made his South Bank debut at the Purcell Room with his accompanist Tom Poster.

Guy plays on a rare Italian cello made in 1820 by Pellizon, provided by an anonymous foundation.

Tom Poster was born in Cambridge but settled in Oxford at the age of eleven. He went to Cherwell School and studied music at King's College, Cambridge, where he gained a double-first class honours degree. In 2000 he won the keyboard finals of both the Royal Overseas League Competition and the BBC Young Musician of the Year. Tom has given numerous recitals and concerto performances in venues which include the Barbican Hall, Queen Elizabeth Hall and Purcell Room in London, the Sheldonian Theatre and Holywell Room in Oxford, as well as at concert halls in continental Europe and the Middle East. He composes, and a number of Tom's performances have been broadcast on BBC 2, BBC Radio 3 and Classic FM. He has written chamber operas and incidental music for the theatre.