| Saturn Award for Best Supporting Actor | |
| Awarded For: | Best performance of the year by a male in a supporting role in a genre film |
| Presenter: | Academy of Science Fiction, Fantasy and Horror Films |
| Country: | United States |
| Year: | 1974/75 |
| Holder: | Nicolas Cage for Renfield (2022/2023) |
The following is a list of Saturn Award winners and nominees for Best Supporting Actor (in a film). Burgess Meredith, Ian McKellen and Andy Serkis are the only actors that have won the award twice, while only Javier Bardem, Heath Ledger, and Ke Huy Quan have won both the Saturn Award and the Academy Award for Best Supporting Actor for the same performance.
| Year | Actor | Motion Picture | Character |
|---|---|---|---|
| Marty Feldman | Young Frankenstein | Igor | |
| Jay Robinson | Train Ride to Hollywood | Dracula | |
| Alec Guinness | Star Wars | Obi-Wan "Ben" Kenobi | |
| Red Buttons | Pete's Dragon | Hoagy | |
| Peter Cushing | Star Wars | Grand Moff Tarkin | |
| Burgess Meredith | The Sentinel | Charles Chazen | |
| Woody Strode | Kingdom of the Spiders | Walter Colby | |
| Burgess Meredith | Magic | Ben Greene | |
| Michael Ansara | The Manitou | John Singing Rock | |
| Michael Jackson | The Wiz | Scarecrow | |
| James Mason | Heaven Can Wait | Mr. Jordan | |
| Leonard Nimoy | Invasion of the Body Snatchers | Dr. David Kibner | |
| Arte Johnson | Love at First Bite | Renfield | |
| Richard Kiel | Moonraker | Jaws | |
| Leonard Nimoy | Spock | ||
| Donald Pleasence | Dracula | Dr. Jack Seward | |
| David Warner | Time After Time | John Leslie Stevenson/Jack the Ripper |
| Year | Actor | Motion Picture | Character |
|---|---|---|---|
| Ke Huy Quan | Everything Everywhere All at Once | Waymond Wang | |
| Paul Dano | The Batman | Edward Nashton / Riddler | |
| Colin Farrell | Oswald Cobblepot / Penguin | ||
| Ethan Hawke | The Black Phone | The Grabber | |
| Richard Jenkins | Nightmare Alley | Ezra Grindle | |
| Alfred Molina | Otto Octavius / Doctor Octopus | ||
| Benedict Wong | Doctor Strange in the Multiverse of Madness | Wong | |
| Nicolas Cage | Renfield | Dracula | |
| Robert Downey Jr. | Oppenheimer | Lewis Strauss | |
| Ryan Gosling | Barbie | Ken | |
| Michael Keaton | The Flash | Bruce Wayne / Batman | |
| Stephen Lang | Miles Quaritch | ||
| Mads Mikkelsen | Indiana Jones and the Dial of Destiny | Jürgen Voller |