Charles Warren appeared as a guest for Exeter City during 1945/46 when two interim league competitions - Division Three South (South of Thames) [played until Christmas] and the Division Three South Cup (Southern Section) [played from January] - were organised ahead of a return to ‘normal’ league football in 1946/47. 

Stationed locally with the Royal Air Force, he made his debut in a 4-1 win (and scored) at Swindon Town in August 1945 which proved to be one of just two matches he played for the Grecians. Charles had reportedly been a schoolboy international and joined the club at the same time as Stan Challis.