Abzorbaloff (The Genuine Article)

An Abzorbalovian, the father of the "Abzorbaloff" encountered by LINDA, and who also answered to the name of "Abzorbaloff", sought revenge against the Tenth Doctor in 2009 (WC: The Genuine Article) following the death of his son. (TV: Love & Monsters)

Luring the "Gallifreyan worm" into a trap of his own design in Cardiff, he was initially mistaken for his "un-puddled" son by the unsuspecting Doctor. Upon revealing his true identity, the Abzorbalovian unleashed the Krakanord, a creature he had held captive for three months, to eliminate his enemy. To his surprise, however, it turned against him, killing him on the spot with its acid blaster in return for having been fed nothing but baked beans and wheat biscuits, which it found disgusting. (WC: The Genuine Article)

Behind the scenes
Though not named in dialogue, the credits refer to this individual as "the Abzorbaloff" just like his son.