Vlahos was born in Tumble, Carmarthenshire, before moving to Llantrisant, Mid Glamorgan. He is the son of a Greek father and a Welsh mother, and speaks both Welsh and English. He played ice hockey from ages eight to 18. He trained in acting at the Royal Welsh College of Music & Drama in Cardiff, graduating in 2009.
Known For
Credits
Cast Credits
Sanditon (2019)
Starring as Charles Lockhart
(8 episodes)
- Episode 3x03: Episode 3 (Mar 19, 2023)
- Episode 3x01: Episode 1 (Mar 19, 2023)
- Episode 2x06: Episode 6 (Apr 24, 2022)
- Episode 2x05: Episode 5 (Apr 17, 2022)
- Episode 2x04: Episode 4 (Apr 10, 2022)
- Episode 2x03: Episode 3 (Apr 3, 2022)
- Episode 2x02: Episode 2 (Mar 27, 2022)
- Episode 2x01: Episode 1 (Mar 20, 2022)
Genius (2017)
Guest starring as Maurice Solovine
- Episode 1x03: Einstein: Chapter Three (May 7, 2017)
Versailles (2015)
Starring as Monsieur Philippe d'Orléans
(30 episodes)
- Episode 3x10: L'héritage (May 21, 2018)
- Episode 3x09: La poudrière (May 21, 2018)
- Episode 3x08: Des hommes et des dieux (May 14, 2018)
- Episode 3x07: Le livre des révélations (May 14, 2018)
- Episode 3x06: La roue de la fortune (May 7, 2018)
- Episode 3x05: L'au-delà (May 7, 2018)
- Episode 3x04: Crime et châtiment (Apr 30, 2018)
- Episode 3x03: La vérité éclatera (Apr 30, 2018)
- Episode 3x02: Question de confiance (Apr 23, 2018)
- Episode 3x01: Miroirs et fumée (Apr 23, 2018)
- Episode 2x10: De pierre et de sang (Apr 24, 2017)
- Episode 2x09: Sept ombres (Apr 24, 2017)
- Episode 2x08: Nouveau régime (Apr 17, 2017)
- Episode 2x07: Une nuit (Apr 17, 2017)
- Episode 2x06: Les sables du temps (Apr 10, 2017)
- Episode 2x05: Guerre et paix (Apr 10, 2017)
- Episode 2x04: Miasme (Apr 3, 2017)
- Episode 2x03: Quis Custodiet Ipsos Custodes ? (Apr 3, 2017)
- Episode 2x02: Un murmure doux et léger (Mar 27, 2017)
- Episode 2x01: Labyrinthe (Mar 27, 2017)
- Episode 1x10: Episode 10 (Dec 14, 2015)
- Episode 1x09: Episode 9 (Dec 14, 2015)
- Episode 1x08: Episode 8 (Dec 7, 2015)
- Episode 1x07: Episode 7 (Dec 7, 2015)
- Episode 1x06: Episode 6 (Nov 30, 2015)
- Episode 1x05: Episode 5 (Nov 30, 2015)
- Episode 1x04: Episode 4 (Nov 23, 2015)
- Episode 1x03: Episode 3 (Nov 23, 2015)
- Episode 1x02: Episode 2 (Nov 16, 2015)
- Episode 1x01: Episode 1 (Nov 16, 2015)
Outlander (2014)
Guest starring as Allan Christie
(8 episodes)
- Episode 7x02: The Happiest Place on Earth (Jun 23, 2023)
- Episode 6x08: I Am Not Alone (May 1, 2022)
- Episode 6x07: Sticks and Stones (Apr 24, 2022)
- Episode 6x06: The World Turned Upside Down (Apr 10, 2022)
- Episode 6x05: Give Me Liberty (Apr 3, 2022)
- Episode 6x03: Temperance (Mar 20, 2022)
- Episode 6x02: Allegiance (Mar 13, 2022)
- Episode 6x01: Echoes (Mar 6, 2022)
Sunday Brunch (2012)
Guest starring as Alexander Vlahos
(3 episodes)
- Episode 2018-06-10: Tony Hadley, Alexander Vlahos, Mollie King, Matt Edmondson, Lily Allen, Jorja Smith (Jun 10, 2018)
- Episode 2017-05-28: Frank Skinner, Sheree Murphy, Mark Wright, Alexander Vlahos, Declan McKenna (May 28, 2017)
- Episode 2016-07-10: Katherine Ryan, Joe Lycett, Kelis, Alexander Vlahos, MNEK (Jul 10, 2016)
Merlin (2008)
Guest starring as Mordred
(10 episodes)
- Episode 5x13: The Diamond of the Day: Part Two (Dec 24, 2012)
- Episode 5x12: The Diamond of the Day: Part One (Dec 22, 2012)
- Episode 5x11: The Drawing of the Dark (Dec 15, 2012)
- Episode 5x10: The Kindness of Strangers (Dec 8, 2012)
- Episode 5x09: With All My Heart (Dec 1, 2012)
- Episode 5x08: The Hollow Queen (Nov 24, 2012)
- Episode 5x07: A Lesson in Vengeance (Nov 17, 2012)
- Episode 5x05: The Disir (Nov 3, 2012)
- Episode 5x02: Arthur's Bane: Part Two (Oct 13, 2012)
- Episode 5x01: Arthur's Bane: Part One (Oct 6, 2012)