Chris Gauthier has died at the age of 48 after a short illness.Photo:Andrew Chin/Getty Images

Chris Gauthier poses for a picture during the Legends And Stars: Whitecaps FC Charity Alumni match

Andrew Chin/Getty Images

Chris Gauthier, the actor known for his roles inOnce Upon a Time,Eureka, andSmallville, has died. He was 48.

TriStar Appearances' Chad Colvin also shared his sadness at Gauthier’s death in astatementposted on Facebook Sunday.

Chris Gauthier in ‘Smallville’.CWNetwork/Everett/Shutterstock

‘Smallville’, Chris Gauthier, ‘Requiem’

CWNetwork/Everett/Shutterstock

“This still doesn’t feel real. How can it?” he wrote. “A world without you in it is a much darker place. So much so that when his wife reached out to me yesterday with the news, I wept tears of disbelief for hours.”

Colvin recalled meeting Gauthier for the first time as his second client as a talent agent. “Chris was the literal textbook definition of a character actor. You may not have known his name but you knew his face, you knew his voice, and you knew that if he was onscreen, you were in for a helluva ride,” he continued, adding, “Brother … I am going to miss you so much more than you’ll ever imagine.”

Gauthier pictured in season one of ‘Eureka’ in 2006.Sci-Fi/Everett/Shutterstock

‘Eureka’ - ‘Alienated’ - Neil Grayston, Matt Frewer, Chris Gauthier, Erica Cerra

Sci-Fi/Everett/Shutterstock

The Hallmark channel paid tribute to Gauthier in anInstagram poston Sunday. “We are sorry to hear about the passing of Chris Gauthier,” it read. “Our thoughts are with his family, friends, and fans.”

Brennan Elliott, who starred alongside Gauthier inMs. Christmas Comes to Town, wrote in an emotionalmessageon Instagram, “As I am writing this I don’t know why to be honest! I am still in shock! I did a #christmasmovie for @hallmarkmoviesnow with this incredibly talented actor but more important an amazingly open and giving soul. I only knew him for the 3-week shoot but he was such a beaming light and we had some great conversations!”

“Skip a couple months and a role I was up for he ended up doing and good for him as well as the production cause he knocked it out of the park! Why do the beautiful souls and good people go so young!? 49. Disbelief!!😞,” he continued. “THANKYOU Chris for being a beautiful human and talented artist that touched us all! #mschristmascomestotown wouldn’t of been the movie without you!"

Gauthier also appeared in ‘Harper’s Island’.Chris Helcermanas-Benge/CBS via Getty Images

Matt Barr as Christopher ‘Sully’ Sullivan , Brandon Jay McLaren as Danny Brooks and, Chris Gauthier as Malcolm Ross, in the CBS series HARPER’S ISLAND

Chris Helcermanas-Benge/CBS via Getty Images

Colin O’Donoghue, who playedOnce Upon a Time‘s Hook, wrote onInstagram, “Rest in Peace Chris! Heartbroken! My love and thoughts go out to [wife] Erin and the boys! You will be missed brother! You were the real captain!!”

Several other castmembers from the ABC series weighed in, too, withJosh Dallas, who played Prince Charming, writing, “Rest in peace Chris. Love and light to his family.”

Lana Parrillaalso shard his sadness at the news. “Oh no. Rest Easy Chris. I’m so sorry Coiln. [sic] Healing love and light to all who love him. 🙏🏽❤️🕯.”

Sean Maguire, who played Robin Hood, also weighed in, writing, “What?!??! No!!!! No no no no. Gutted heartbroken. In shock. 💔.”

Never miss a story — sign up forPEOPLE’s free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories.

Harper’s IslandstarChristopher Gorhamalso shared, “Another good man gone too soon. Grateful to have worked with Chris and am sending love to his family and friends. Rest in peace, pal.”

source: people.com