Archie Sylvest
From Tardis Wiki, the free Doctor Who reference
Professor Archie Sylvest was the father of Romulus and Remus Sylvest. He was worried that his sons' mathematical genius could be used to alter reality on a massive scale. When he discovered that they had been abducted, he alerted the Interplanetary Pursuit Squadron, who sent Hugo Lang to find them. (TV: The Twin Dilemma)
Behind the scenes
In the novelisation, he is given the first name Archie.
