The Saturn Award for Best Supporting Actor on Television is presented annually by the Academy of Science Fiction, Fantasy and Horror Films, honoring the work of actors in science fiction, fantasy, and horror fiction on television.
In 2019 and 2022, the award was split into two Best Supporting Actor in a Network or Cable Television Series and Best Supporting Actor in a Streaming Television Series, but has since returned to one combined category.
The most recent winner is Jonathan Frakes as William Riker in Star Trek: Picard.
Aaron Paul has the most wins in the category, with three for his role as Jesse Pinkman on Breaking Bad, while Jonathan Banks, Dough Jones, and James Marsters each have two wins for Breaking Bad, Star Trek: Discovery, and Buffy the Vampire Slayer respectively.
Kit Harington and Norman Reedus have the most nominations without a win, with four.