Chris Gauthier, an English-born Canadian actor whose TV credits included Once Upon a Time and Eureka, died on Feb. 23 at age 48. His management said he died from an unspecified short illness.

“We can confirm that our dear friend and client, Chris Gauthier, passed away on Friday morning, February 23, at the age of 48,” said a statement from TriStar Appearances/Event Horizon Talent. “His loss is felt not just by his fans but by those of us who were lucky enough to know him more personally. On behalf of his family, we do ask for privacy during this time so that they are able to grieve properly.”

“Rest in Peace Chris! Heartbroken!” said an Instagram post by Colin O’Donoghue, aka Once Upon a Time‘s Hook, who played Gauthier’s William Smee character’s captain on the show. “My love and thoughts go out to [wife] Erin and the boys! You will be missed brother!