The couple will be wed at Portland Yacht Services in Portland, ME.
Yazbeck, who has also been seen on Broadway in Gypsy, A Chorus Line, Never Gonna Dance and more, took to Twitter to share his excitement.
I'm always rehearsing. But this time is for life! #weddingrehearsal
I'm the luckiest man in the world today #katieandtonyholymatrimony
— Tony Yazbeck (@TonyYazbeck) October 20, 2014