Ssard

Ssard was an Ice Warrior from an early period of Martian history who decided to join the Doctor on his travels. He would later marry Stacy Townsend, another of the Doctor's companions.

Biography
Ssard, with two other Ice Warriors, Risttaal and Tusstokk, was a guard at the Ascendance Rite for Izaxyrl, the son of High Lord Usoxx. When the Doctor and Stacy appeared, he confronted them, though left them unharmed.

Subsequently got involved with the treachery of Lord Artix. Artix had the other two guards killed and kidnapped Isaxyrl. (RT: Descendance). At the conclusion of events, Ssard was invited on a 'holiday' by the Doctor and gladly accepted the offer to travel with him. (RT: ''Ascendance')

Ssard was not pleased in Victorian London and had to wear a cloak to hide himself. He was a capable engineer as he helped to fix P'fer'd's spaceship (RT: Perceptions). He, unlike the Doctor, doesn't notice when Stacy has been swapped with a shapeshifter (RT: Coda). Later, after Stacy and him have left the Doctor, they get married and the Doctor is invited to the wedding. (EDA: Placebo Effect)