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IMDbPro

Theo Devaney

  • Actor
  • Producer
  • Writer
IMDbProStarmeterSee rank
Theo Devaney
William James Moriarty lives as a regular noble while also being a consultant for the common folk to solve their problems. However, deep inside him lies a desire to destroy the current structure that dominates British society.
Play trailer1:28
Moriarty the Patriot (2020–2022)
4 Videos
25 Photos
Theo Devaney is an actor, known for A Christmas Prince (2017), Supernatural (2014) and Psych (2014).

Theo was born in London and grew up a few miles from Stonehenge in Wiltshire, England. He graduated from 3-year Professional Acting training at the Oxford School of Drama in 2005.

He resides in Santa Barbara, California.
  • More at IMDbPro
    • Contact info
    • Agent info
    • Resume
IMDbProStarmeterSee rank
  • View contact info at IMDbPro
    • Awards
      • 1 nomination total

    Photos25

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    Known for

    Rose McIver and Ben Lamb in A Christmas Prince (2017)
    A Christmas Prince
    5.8
    • Simon
    • 2017
    Jensen Ackles and Jared Padalecki in Supernatural (2005)
    Supernatural
    8.4
    TV Series
    • Gavin MacLeod
    Rose McIver and Ben Lamb in A Christmas Prince: The Royal Baby (2019)
    A Christmas Prince: The Royal Baby
    5.4
    • Simon
    • 2019
    Dulé Hill and James Roday Rodriguez in Psych (2006)
    Psych
    8.4
    TV Series
    • Winston

    Credits

    IMDbPro

    Actor

    • Dark Moon: The Blood Altar (2026)
      Dark Moon: The Blood Altar
      6.2
      TV Series
      • Dardan (voice)
      • 2026
    • Jude Law and Jason Bateman in Black Rabbit (2025)
      Black Rabbit
      7.3
      TV Mini Series
      • Banker Bro
      • 2025
    • Mark Strong in Warhammer 40,000: Space Marine - Master Crafted Edition (2025)
      Warhammer 40,000: Space Marine - Master Crafted Edition
      6.8
      Video Game
      • Chaos Space Marine (voice)
      • 2025
    • American Sports Story (2024)
      American Sports Story
      7.3
      TV Series
      • Aide
      • 2024
    • Diane Lane, Demi Moore, Molly Ringwald, Calista Flockhart, Chloë Sevigny, and Naomi Watts in Feud (2017)
      Feud
      8.3
      TV Series
      • Peter Sellers
      • 2024
    • Moriarty the Patriot (2020)
      Moriarty the Patriot
      8.0
      TV Series
      • Sherlock Holmes (voice: English version)
      • 2020–2022
    • Will Kemp and Vanessa Hudgens in The Princess Switch 3 (2021)
      The Princess Switch 3
      5.6
      • Simon
      • 2021
    • Roanoke Falls (2021)
      Roanoke Falls
      7.3
      Podcast Series
      • 2021–2024
    • Nepenthe
      Short
      • Dexter
      • 2020
    • Rose McIver and Ben Lamb in A Christmas Prince: The Royal Baby (2019)
      A Christmas Prince: The Royal Baby
      5.4
      • Simon
      • 2019
    • Leo Gregory and Terry Stone in Once Upon a Time in London (2019)
      Once Upon a Time in London
      5.2
      • Stanley
      • 2019
    • Emmerdale Farm (1972)
      Emmerdale Farm
      4.9
      TV Series
      • Miles
      • 2019
    • Rose McIver and Ben Lamb in A Christmas Prince: The Royal Wedding (2018)
      A Christmas Prince: The Royal Wedding
      5.4
      • Simon
      • 2018
    • Aux (2018)
      Aux
      4.2
      • EOD Officer
      • 2018
    • Rose McIver and Ben Lamb in A Christmas Prince (2017)
      A Christmas Prince
      5.8
      • Simon
      • 2017

    Producer

    • Nepenthe
      Short
      • producer
      • 2020
    • Run (2015)
      Run
      Short
      • executive producer
      • producer
      • 2015

    Writer

    • Nepenthe
      Short
      • Writer
      • 2020
    • Run (2015)
      Run
      Short
      • written by
      • 2015

    Verified affiliations

    Learn more at IMDbPro
    SAG-AFTRA

    Videos4

    DRAMA REEL 2026
    Demo Reel 4:55
    DRAMA REEL 2026
    COMEDIC REEL 2026
    Demo Reel 2:54
    COMEDIC REEL 2026
    COMEDIC REEL 2026
    Demo Reel 2:54
    COMEDIC REEL 2026
    Official Trailer
    Trailer 1:28
    Official Trailer
    Official Trailer
    Trailer 2:32
    Official Trailer

    Personal details

    • Alternative name
      • Theo Herdman
    • Height
      • 5′ 11″ (1.80 m)

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