Roger Buchman
From Tardis Wiki, the free Doctor Who reference
Roger Buchman was the partner of Veronica Buchman, the step-father of Toasty Buchman, and the father of Iron Buchman. He was an engineer and transmat scientist.
In 16127, he met the Sixth Doctor and Flip Jackson. He perished helping them fight the Wirrn. (AUDIO: Wirrn Isle)