Born in Valleyfield, Quebec, he also has a star on the Hollywood Walk of Fame.

[4] His autobiography, Another Day In Showbiz: One Producer's Journey, offers his vision of the industry, detailing stars, directors, producers, movies, TV companies, record companies, and the art, creation, and exhibition of stage productions such as The Will Rogers Follies, The Scarlet Pimpernell, and The Voice of Woody Guthrie.

In the book, Cossette describes a conversation he had with his personal friend, Donald Trump, about his having cast Marla Maples into his Broadway production of The Will Rogers Follies (Maples became Trump's second wife shortly thereafter).

Cossette booked shows in Las Vegas, brought The Grammy Awards to TV, and managed performers such as Dick Shawn and Buddy Hackett.

[5] Cossette died from congestive heart failure on September 11, 2009, in Ormstown, Quebec at the age of 85.