Gigler, 47 collapsed and died suddenly at around noon on Saturday during rehearsals at Interplayers theater.
He was preparing to play a lead role in Interplayers' production of Ruthless, the Musical, scheduled to open on June 21. Interplayers artistic director Reed McColm has canceled the entire run of the show.
Gigler was the life partner of the show's director, Troy Nickerson, himself a highly respected and longtime local director and actor.
Just last year, for his January 2011 performance as Lennie in Of Mice and Men at Lake City Playhouse, Gigler won a Spokie (The Inlander's local theater award) for Best Performance as a Leading Actor in a play.
Local playgoers will also recall Gigler's rousing song-and-dance performance as Alfred Doolittle in My Fair Lady at Spokane Civic Theatre in 2001.