Michael, who also starred in Rock of Ages and Joseph and The Amazing Technicolour Dreamcoat, died after a year-long battle with cancer.
He was diagnosed with an aggressive form of germ cell cancer last year.
His publicist Ian Phipps announced the news on Twitter.
“Vale Michael Falzon. You fought valiantly until the last, my friend.
“Your beaming smile, huge talent and incredible positivity will be missed by so many friends, family and fans. We are better for having known you.
“Love to Jane and your family.”
Michael is survived by his wife, violinist Jane Cho.