John Manard · CC BY-SA 4.0

Played the Ferengi bartender Quark across all seven seasons of Star Trek: Deep Space Nine, one of the more complex recurring characters in the franchise, using the role to give a caricatured alien capitalist real emotional range. He was also a recurring menace as Principal Snyder on Buffy the Vampire Slayer and voiced Andrew Ryan, the ideologically driven antagonist of the BioShock video games.