Josiah W. Dogbolter

Half-man, half-frog Josiah W. Dogbolter was a ruthless capitalist of mysterious origins and the owner of Intra-Venus, Inc.. On a number of occasions, he employed quirky mercenaries in various attempts to capture the Doctor's TARDIS, which he saw as a way to make even more money.

Biography
As head of Intra-Venus, he actually owned the planets Venus, Mars and Jupiter, among other worlds, including the mining world Celeste. A loyal robot named Hob assisted him in his financial decisions. Mistaking the Doctor and his companion Gus for rebel leaders, he learned of the TARDIS. Thinking that "time equals money" and that therefore a time machine would create money for him, he employed the Moderator to locate it for him. The Moderator fatally shot Gus, despite which the Doctor rescued the Moderator, ensuring that he got on life support. Dogbolter, however, ensured that Hob disconnected the Moderator from life support, so that he died. (DWM: The Moderator)

Dogbolter offered a quarter of a million mazumas as a reward for the Sixth Doctor. Frobisher intended to collect the money, but instead befriended the Doctor. They stole the money from Dogbolter's estate and then escaped. (DWM: The Shape Shifter)

Josiah was searching for "the something". An object that if sold, could disrupt the economic stability on one of his planets. He bribed the police officer, Chandler, to work for him. In a demonstration to Frobisher, Josiah killed his henchman, Elgar. He found "the something" to be a microchip. Upon using it the microchip delivered a joke to the workers screen. This gave them imagination, destroying the economy. (BFA: The Maltese Penguin)

Dogbolter later developed the Dogbolter Temporal Rocket, promising unlimited potential for personal time travel to his shareholders. He employed Death's Head to hunt down the Doctor through time using the prototype but planned to destroy both with a nuclear weapon built into the device. Working together Death's Head and the Doctor removed the bomb and left it on the roof of Intra-Venus HQ. Dogbolter and Hob fled to the secure sub-basement. Held up in the elevator, Dogbolter found his passcard with seconds to spare (DH: Time Bomb!) but both were caught in the blast. Hob refused any suggestion that Dogbolter had perished in the explosion. (DH: The Incomplete Death's Head)