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 of Balarzus Mons. When the Doctor and Stacy appeared, he confronted them, though left them unharmed.

Subsequently, as well as the Doctor and Stacy, got involved with the treachery of High Lord Artix and of Luass, the the wife of Usoxx and mother of Izaxyrl. 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 he left the Doctor with Stacey, staying in the late 40th century, Stacy and Ssard were engaged and invited the Doctor to the wedding on Micawber's World. (EDA: Placebo Effect)