​George Sirois is the author of the international bestselling young adult / science-fiction novel Excelsior, its two sequels, and the five-part science-fiction / sports serial From Parts Unknown. Both stories have a long development history, with the character of Excelsior filling George's steno notebooks in high school in 1992 and the world of From Parts Unknown coming to life during a walk around New York City in 1995. The Excelsior trilogy and the From Parts Unknown serial have found a new home at Roan & Weatherford Publishing Associates, where George now serves as its Director of Media Relations. 

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George was elected Vice-President of the Missouri Writers Guild in 2016-2017 and President from 2017-2018, also operating as the chair or co-chair of the Guild's annual conference. During his time as President, he assisted in the creation of the MWG's newest chapter, the Hannibal Writers Guild.

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In 2018, after two years of participating on the roundtable podcast Write Pack Radio, George ventured into solo podcasting with Excelsior Journeys, a weekly interview show that spotlights both established and up-and-coming creatives, and From Duck Till Dark: Outside the Marvel Studios, a celebration of the Marvel movies that were not part of the Marvel Cinematic Universe. In 2023, he and fellow authors Stacey Rourke and Sandra Schaer-Fisackerly founded the Once Upon a Podcast Network, a group of podcasts meant to motivate, celebrate, educate, and even rejuvenate creatives of all kinds.

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George adapted & directed an audio dramatization of the first Excelsior book, which featured a full cast of voice actors, sound effects, and a rousing musical score. The acclaimed live performance was produced by The 529 Club on the Clubhouse app on March 12 & 19, 2023. The same year, George wrote the short screenplay "Minus One Plus," which has garnered accolades in the SIFCA Short Script Competition, the Cambridge Script Festival, the Lift-Off Global Network Script & Screenwriters Showcase, and the International Indie Film & Screenplay Festival in Glasgow, Scotland, where it was awarded Outstanding Achievement. ​

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George began pursuing voiceover work in 2015, working with the successful voice artist & instructor Jim Singer. He became an audiobook narrator in 2016 with a performance of his own book "Excelsior." He has since gone on to narrate over fifteen titles in various genres, including young adult fantasy, science-fiction, children's, humor, romance, and personal development. He also assisted author Derek Taylor Kent behind the scenes of the award-winning audiobook "Kubrick's Game," narrated by Jonathan Frakes & Yvette Nicole Brown.

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While New York remains forever in his heart (Let's Go Giants!), George now calls St. Louis, Missouri his home with his wife & daughter. He loves to sit down with a good movie, enjoy family game night, and dance West Coast Swing.