Ashmore also plays the main character, Jack Joyce, in the 2016 video game Quantum Break, as well as Conrad in 2019's Man of Medan.

[9][10] In December 2004, Ashmore was cast in the lead role in the SciFi Channel mini series Legend of Earthsea, based on the novels by Ursula K. Le Guin.

[11] He played the role of Ged, a young wizard-in-training, who takes advice from a Magus (Danny Glover) and falls in love with Tenar (Kristin Kreuk), the protege of the High Priestess of the Tombs of Atuan (Isabella Rossellini).

[12] In 2005, Ashmore starred in a CTV TV movie about Terry Fox's historic run across Canada, which aired in September of that year.

[16] Ashmore starred in the apocalyptic siege warfare film The Day with Dominic Monaghan, Michael Eklund, Shannyn Sossamon, and Ashley Bell.

[21][22] In April 2016, Shawn appeared in Quantum Break, a singleplayer third-person shooter video game developed by Remedy Entertainment and published by Microsoft Studios, that features high budget live action TV show-like cut scenes where Shawn plays the main character, Jack Joyce.