[1] He is considered to be one of the most prolific independent comic book writers in Canada, with his works having been published in eleven countries and in numerous different languages.

[1] O’Reilly has completed two degrees and a Masters, and teaches college level courses in Vancouver[2] and the UCLA,[3] in addition to being a Mentor and Scriptwriting consultant for Telefilm.

This was followed up by the animated feature Pixies in 2015, which included voice actors Christopher Plummer, Bill Paxton and Alexa Vega.

O'Reilly wrote, directed and produced Pixies, and also voices the main protagonist, Joe Beck.

[8] In 2018, Sean directed three animated features The Steam Engines of Oz, The Legend of Hallowaiian, and Howard Lovecraft and the Kingdom of Madness.