Steven Taylor, Flight Red Fifty was a space pilot from Earth, whose craft had crash-landed on Mechanus. Imprisoned and inspected for two years by the Mechanoids, Steven was overjoyed to meet the TARDIS crew. As Barbara and Ian bade farewell to the Doctor and Vicki, Steven - injured and confused - stowed away aboard the TARDIS. Physically strong, deeply moral and very brave, Steven often clashed with the Doctor. Witnessing the terrible deaths of Katarina and Sara Kingdom, and the Massacre of St Bartholemew’s Eve, Steven questioned the role of time travelling without helping people. After battling the Celestial Toymaker and getting caught up in the gunfight at the O.K. Corral, Steven left the Doctor to rebuild a unified world of Elders and Savages.