Captain Britain's supporting cast.
Mastermind, the living computer created by Dr. James Braddock
Courtney Ross and Brian Braddock
Sandy York, Brian Braddock's best friend in college Merlyn, creator of Captain Britain Roma, Lady of the Northern Skies, Merlyn's daughter
Detective Chief Inspector Thomas and Detective Inspector Fraser
Prime Minister James Callaghan
Valinor, the Black Knight's winged steed Vortigen, an ally of the Captain, from Otherworld Moondog, an elf from Otherworld, now deceased Jackdaw, the Captain's ill-fated sidekick Saturnyne, the Omniversal Majestrix and a persistent thorn in the Captain's side Dimples, the ill-fated servant of Saturnyne The Technet, occasional allies and sometime enemies of the Captain. Forebears of the Special Executive Excalibur, another team the Captain formerly belonged to, affiliated with the X-Men Union Jack, an occasional ally of the Captain. Their difference in social standing and political views causes friction