‘Rambling’ Sid Ridley, as Captain Midlands, is the English equivalent of Captain America. Under the Super Soldier program of the early 1940s his strength, stamina and agility was increased to the peak of human fitness. This allowed him to fight as a British super soldier during WW2. Unlike Captain America, Captain Midlands was not frozen or preserved in time and therefore has aged accordingly. Somewhere in his 80s he still posses his superhuman abilities but has the aged body of a pensioner.

The history of his life is largely unknown but it is hinted that he had a girl he knocked up and subsequently married that died in 1963.

Currently he fights as one of Pete Wisdom's team in MI-13 which deals with "Weird Happenings" and other out-of-the-ordinary events that threaten the UK and the world. As part of the team he has lead an assault on the Fairy King of Otherworld after he had kidnapped the child of a cabinet minister and sent fairies to attack our world. He was also responsible for stopping the sleeping giant Pantagruel after she was awakened in the British countryside. He did this by convincing her that she was destroying the country and hurting innocents.

Since then he has also fought multiple-dimensional Jack the Rippers and on a separate occasion defended England and the earth from Martian invaders.