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.

As of the 47th Saturn Awards in 2022, the award is known as Best Supporting Actor in a Network or Cable Television Series and features a sister category: Saturn Award for Best Supporting Actor in a Streaming Television Series.

(NOTE: Year refers to year of eligibility, the actual ceremonies are held the following year.)

The winners are listed in bold.

6 nominations

• Michael Emerson
• James Marsters

5 nominations

• Michael Rosenbaum

4 nominations

• Jonathan Banks
• Kit Harington
• John Noble
• Terry O'Quinn
• Aaron Paul
• Norman Reedus

3 nominations

• Nikolaj Coster-Waldau
• Alexis Denisof
• Josh Holloway
• Erik Knudsen

2 nominations

• James Callis
• Tony Dalton
• Giancarlo Esposito
• Victor Garber
• John Glover
• Greg Grunberg
• Ed Harris
• Doug Jones
• Dean Norris
• Masi Oka
• Khary Payton
• Lance Reddick
• Michael Shanks
• Connor Trinneer
• Michael Weatherly

3 wins

• Aaron Paul

2 wins

• Jonathan Banks
• James Marsters

• Saturn Award for Best Supporting Actor in Streaming Presentation

• Official website
• 26th, 27th, 28th, 29th, 30th, 31st, 32nd, 33rd, 34th, 35th, 36th, 37th, 38th, 39th, 40th, 41st, 42nd