Trevor Metcalfe submitted his first cartoons to his local newspaper. He attended Art School, where he was class mates with Bob Nixon, a future comic artist with whom he would cooperate on several occasions. After his National Service, Metcalfe worked on a freelance basis for D.C. Thomson around 1960, creating among others 'Bullies and Babies', but eventuallly found employment with a printing firm.
He returned to comics in 1965 and began a long collaboration with Fleetway. He drew popular strips for all the main humour titles, and additionally did scriptwork for other artists, including Nixon. Among his features are 'J.R.' (in Whizzer & Chips), 'Sweet Tooth' (in Whizzer & Chips'), 'Ad Lad' (in Whoopee!), 'Doughnut and Rusty' (in Monster Fun), 'Bird Man and Chicken' (in Krazy), 'Sheerluck and Son' (in Whoopee!), 'The Amazing Three' (in Jackpot) and 'Angel's Proper Charlies' (in Jackpot).