Zeno (The Secret in Vault 13)

Zeno was a Time Lord who invented a time-based lock called Zeno's paralock. He was rumoured to have built three examples. (PROSE: The Secret in Vault 13)

Behind the scenes
Zeno shares the name with, a real-world Ancient Greek philosopher. While the Time Lord Zeno invented paralocks, the real-world Zeno is famous for his paradoxes.