Shelly (The Playthings of Fo)

Shelly was a companion of the First Doctor following the his emergency evacuation of the Council of Earth and Mars mission to Corbo. He travelled alongside Dr Harroll Strong, and Strong's children, Jack and Dot, as well as Hill and Chertzog.

He was a young, broad man with blond hair. (PROSE: The Playthings of Fo)

Behind the scenes

 * Though a member of the Earth-Mars mission to Corbo, Shelly is not actually introduced or mentioned until The Playthings of Fo.
 * Due to the way the other male companions in these two stories are referred to, Shelly is almost certainly this character's surname.