In 2006 he performed a one-off hour of stand-up Edinburgh Fringe show, When I was a Little Girl – The Very Best of Trevor Lock, at the Gilded Balloon Teviot Wine Bar, Edinburgh and appeared in Cloud Cuckooland, a work-in-progress for a forthcoming BBC Radio show with Russell Brand and Matt Morgan, at the Smirnoff 'Underbelly', Cowgate.
In November 2007 Lock addressed the Oxford Union on the meaning of life, 'disproving' Descartes' maxim "Cogito ergo sum" by tipping a glass of water over his head.
[1] In 2009, Trevor Lock performed a warm up show for the Edinburgh Fringe Festival at a fundraiser for Boxmoor Cricket Club.
He was often teased by his co-hosts for supposedly being cruel to animals, as well as for telling several stories involving a boot coming through a ceiling and lying or inventing anecdotes.
This was meant to be a short clip of sound effects and voices (all done by Lock) which would enable listeners to guess the title of a song.
These ranged from eating lemons to serenading Noel Gallagher with an Oasis song in Lock's Elvis Presley voice.
Between 1998 and 1999, Lock regularly appeared in the Lee and Herring BBC Sunday lunchtime show, This Morning With Richard Not Judy.
Lock played a variety of roles in Channel 4's Star Stories including Michael Parkinson, Billy Bob Thornton, Glenn Hoddle, Emilio Estevez and Ant McPartlin.
This theatre piece involved Lock acting as a facilitator to let audience members get to know each other and form an impromptu family-like group.