In his 45 years on stage, screen and radio, he portrayed a wide variety of characters, including some choice roles in classical and contemporary theatre.
His earliest influences came by way of the STAGE series, the Canadian Broadcasting Corporation's radio productions of original plays and international classics beginning in the early 1940s.
Coincidental with his first appearances in community theatre (1955), CBC/Radio Canada announced plans for their first live English and French television series to be produced in Montreal.
At this time (1955–57), he appeared in three films for the NFB's Perspective series, and performed his first leading role in a teleplay called Etc..., which grew out of Domino and was written by Cohen and directed by Bloomfield for Guest Stage.
In 1957, Domino's rehearsal schedule of A View From The Bridge came to a sudden end when it was learned that the American touring company of the same play, starring Luther Adler, was due for a limited run at Her Majesty's Theatre and that casting of the minor roles would be done locally.
The following year, he rejoined the company of A View From The Bridge for the pre-Broadway tour of what was to be the first presentation of the extended version of Arthur Miller's one-act play.
Many of his roles were in original plays as well as familiar ones such as Eilif in Mother Courage, Brutus in Julius Caesar, Eilert Lovborg in Hedda Gabler, Charles Bentham in Juno and the Paycock, Grace in The Brig, Victor in Yerma, Nick in For Want of Something Better To Do, Lord Mountararat in Iolanthe, Kourchaev in Diary of a Scoundrel, King John in King John and the Magna Carta, The Man in Last To Go,The Applicant, Gladly Otherwise, Brother Ladvenu in The Lark, Valentine in Twelfth Night.
In the 1960s and 1970s Canadian radio listeners heard him on CBC Stage, Drama In Sound, Wednesday Night, The Bush and the Salon, Midweek Theatre, Maigret (series), Schools Broadcasts, Anthology and Foothill Fables.
Some of the well known and recognizable parts he played were: Birman dubbed foreign films, was voice over on TV and radio commercial spots, and narrated school programs and documentaries.
Renaut retired as the leading script supervisor with credits on all major television series and feature films produced in Canada, including the landmark The Fox (1967).