Sion Daniel Young

Cast Credits

The Guest (2025)

Starring as Lee Mace (4 episodes)

Episode 1x04: Episode 4 (Sep 1, 2025)
Episode 1x03: Episode 3 (Sep 1, 2025)
Episode 1x02: Episode 2 (Sep 1, 2025)
Episode 1x01: Episode 1 (Sep 1, 2025)
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Lost Boys & Fairies (2024)

Starring as Gabriel (3 episodes)

Episode 1x03: Look at Your Kind Face (Jun 3, 2024)
Episode 1x02: With or Without You (Jun 3, 2024)
Episode 1x01: We're All Just Children (Jun 3, 2024)

Witness Number 3 (2022)

Starring as PC Ivan Barkas (4 episodes)

Episode 1x04: Episode 4 (Jul 18, 2022)
Episode 1x03: Episode 3 (Jul 18, 2022)
Episode 1x02: Episode 2 (Jul 18, 2022)
Episode 1x01: Episode 1 (Jul 18, 2022)
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Slow Horses (2022)

Guest starring as Douglas (3 episodes)

Episode 3x05: Cleaning Up (Dec 20, 2023)
Episode 3x04: Uninvited Guests (Dec 13, 2023)
Episode 3x01: Strange Games (Nov 29, 2023)

Clean It, Fix It (2021)

Starring as Narrator (40 episodes)

Episode 3x20: Episode 20 (Mar 8, 2024)
Episode 3x19: Episode 19 (Mar 7, 2024)
Episode 3x18: Episode 18 (Mar 6, 2024)
Episode 3x17: Episode 17 (Mar 5, 2024)
Episode 3x16: Episode 16 (Mar 4, 2024)
Episode 3x15: Episode 15 (Mar 1, 2024)
Episode 3x14: Episode 14 (Feb 29, 2024)
Episode 3x13: Episode 13 (Feb 28, 2024)
Episode 3x12: Episode 12 (Feb 27, 2024)
Episode 3x11: Episode 11 (Feb 26, 2024)
Episode 3x10: Episode 10 (Feb 23, 2024)
Episode 3x09: Episode 9 (Feb 22, 2024)
Episode 3x08: Episode 8 (Feb 21, 2024)
Episode 3x07: Episode 7 (Feb 20, 2024)
Episode 3x06: Episode 6 (Feb 19, 2024)
Episode 3x05: Episode 5 (Feb 16, 2024)
Episode 3x04: Episode 4 (Feb 15, 2024)
Episode 3x03: Episode 3 (Feb 14, 2024)
Episode 3x02: Episode 2 (Feb 13, 2024)
Episode 3x01: Episode 1 (Feb 12, 2024)
Episode 2x20: Episode 20 (Jun 23, 2023)
Episode 2x19: Episode 19 (Jun 22, 2023)
Episode 2x18: Episode 18 (Jun 21, 2023)
Episode 2x17: Episode 17 (Jun 20, 2023)
Episode 2x16: Episode 16 (Jun 19, 2023)
Episode 2x15: Episode 15 (Jun 16, 2023)
Episode 2x14: Episode 14 (Jun 15, 2023)
Episode 2x13: Episode 13 (Jun 14, 2023)
Episode 2x12: Episode 12 (Jun 13, 2023)
Episode 2x11: Episode 11 (Jun 12, 2023)
Episode 2x10: Episode 10 (Jun 9, 2023)
Episode 2x09: Episode 9 (Jun 8, 2023)
Episode 2x08: Episode 8 (Jun 7, 2023)
Episode 2x07: Episode 7 (Jun 6, 2023)
Episode 2x06: Episode 6 (Jun 5, 2023)
Episode 2x05: Episode 5 (Jun 2, 2023)
Episode 2x04: Episode 4 (Jun 1, 2023)
Episode 2x03: Episode 3 (May 31, 2023)
Episode 2x02: Episode 2 (May 30, 2023)
Episode 2x01: Episode 1 (May 29, 2023)
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Deceit (2021)

Starring as Colin Stagg (4 episodes)

Episode 1x04: Episode 4 (Aug 13, 2021)
Episode 1x03: Episode 3 (Aug 13, 2021)
Episode 1x02: Episode 2 (Aug 13, 2021)
Episode 1x01: Episode 1 (Aug 13, 2021)
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Keeping Faith (2018)

Guest starring as Gareth Taxi (5 episodes)

Episode 3x05: Episode 5 (Mar 27, 2021)
Episode 3x04: Episode 4 (Mar 27, 2021)
Episode 3x03: Episode 3 (Mar 27, 2021)
Episode 3x02: Episode 2 (Mar 27, 2021)
Episode 3x01: Episode 1 (Mar 27, 2021)
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Un Bore Mercher (2017)

Guest starring as Gareth

Episode 3x01: Pennod 1 (Nov 1, 2020)

Our World War (2014)

Guest starring as Sapper Neary

Episode 1x01: The First Day (Aug 7, 2014)

Y Gwyll (2013)

Guest starring as Morgan Hopkins (2 episodes)

Episode 2x02: Pennod 1: Rhan 2 (Sep 20, 2015)
Episode 2x01: Pennod 1: Rhan 1 (Sep 13, 2015)

Casualty (1986)

Guest starring as Issac Flack

Episode 26x36: Teenage Dreams (May 19, 2012)