Actor Chris Gauthier, known for his roles in “Once Upon a Time,” “Supernatural,” “Eureka” and “Smallville,” died on Feb. 23 at age 48, according to multiple media sources.

The Canadian actor played bank teller Ronald Reznick (and later Reznick’s spirit form) on the CW’s “Supernatural,” as well as Phil, an optimistic lumber mill worker on Netflix’s “A ...