Sang in a church choir and at weddings as a boy soprano.
Made his stage debut in the chorus of a Canadian production of Damn Yankees in 1959.
Starred alongside Angela Lansbury in the original 1979 Broadway production of Sweeney Todd; the pair teamed up again when Cariou landed a recurring role as a spy on Lansbury's series Murder, She Wrote.
Narrated the Oscar-winning 1989 documentary short film The Johnstown Flood.
Elected into the American Theatre Hall of Fame in 2004.
Featured as corrupt billionaire Louis Tobin in season three of Damages.
1973, Tony — Actor (Musical): Nominee
1979, Tony — Actor (Musical): Winner
2009, Emmy — Outstanding Supporting Actor in a Miniseries or a Movie: Nominee
1970, Tony — Actor (Musical): Nominee
Molly Estelle Cariou — Mother
Patricia Otter — Ex-wife
George Marius Cariou — Father
Glenn Close — Ex-significant Other
Susan Kapilow — Ex-wife
Heather Summerhayes Cariou — Wife
Lauren Bacall — Ex-significant Other
Laurel Cariou Freedy — Daughter
University of Manitoba, St. Paul's College, Winnipeg, Manitoba, Canada