Jerry Fisher is Bill Bramble’s hot-tempered boxing trainer at the White Hart club. He calls Bill “a pleasure to train” and is shocked when the boxer decides to quit right before a huge match. He tries to punch Major Percy Stokes for leading his trainee astray, before his fiery anger lands on Bill. Feeling quite “badly treated” by the boxer, of whom he had formerly been so “fond and proud,” he avenges himself on Bill’s son Harold, telling him the boy the truth about Bill’s secret career as a boxer. He calls Harold “Tommy,” a British nickname for young men. When Harold reveals that he is an enormous fan of boxing, Jerry triumphantly brings Bill back to the White Hart to resume training for the match.