Gudmundur Thorvaldsson Filmography
| 2024 | All Eyes on Me · as Gunnar |
| 2024 | Mary · as Marcellus |
| 2023 | Belle · as Papa |
| 2023 | Coach (2023) (TV Series) · as Villi |
| 2023 | Delirium · as Grímur |
| 2022 | April Skies · as Kristopher |
| 2021 | Wolka · as Robert |
| 2021 | The Unfathomable Mr. Jones · as Rollo Coster |
| 2020 | Eurovision Song Contest: The Story of Fire Saga · as Man #1 (1974) |
| 2019 | The Valhalla Murders (TV Series) · as Andrés |
| 2019 | The Witcher (TV Series) · as Remus |
| 2019 | Happily Never After (TV Series) · as Nathaniel |
| 2018 | Ordinary People (TV Series) · as Reynir |
| 2016 | Reykjavík · as Tolli |
| 2015 | Trapped (TV Series) · as Árni |
| 2015 | Mother Goose (TV Series) · as Larus |
| 2015 | Chasing Robert Barker · as David Pillard |
| 2015 | Case (2015) (TV Series) · as Father Of Elfa Dögg |
| 2015 | Fortitude (TV Series) · as Odegard's Pa |
| 2013 | The Fifth Estate · as Wikileaks Staffer #1 |
| 2013 | Days of Gray · as Father |
| 2011 | Heimsendir (TV Series) · as Ungur Bóndi |
| 2011 | Season Of The Witch (TV Series) · as Trausti Löwe |
| 2010 | Any Human Heart (TV Series) · as Spk Swiss Contact |
| 2010 | Messenger · as Sundgestur |
| 2005 | Eleven Men Out · as Markmadur |
| 2000 | 101 Reykjavík · as Ellert |
| 1998 | No Trace · as Gulli |
| 2024 |