Howar attended Ross Sheppard High School, and sang with three choirs: Alberta Youth Choir, the Centennial Singers, and Pro Coro Canada. Joined the Edmonton Musical Theatre Amateur Group and started dancing at 16 as an apprentice with Ballet North.
He had a scholarship to the Royal Winnipeg Ballet, which he declined. Howar appeared in several Canadian productions of Broadway shows, and can also be heard in the Canadian Cast Recording of Joseph and the Amazing Technicolor Dreamcoat, the original cast recording of "Tonight"s The Night" London, and in voiceovers for various commercials and animations such as "Gene Fusion" He then made the step to the United Kingdom and London"s West End theatre, in the lead role of Peggy Sue Got Married. He later played Roger in the rock opera Rent before being replaced by original Broadway cast member Adam Pascal.
He was formerly the lead singer of the London rock band Van Tramp (previously known as "El Camino").
In 2010, Howar joined Mike + The Mechanics along with Andrew Roachford. The following year the album, The Road was released featuring Howar and Roachford as lead vocalists.
Tim is currently starring in the London production of Rock of Ages as Stacee Jaxx at the Garrick Theatre. (August 2013) He is scheduled to remain in the show until its closure on 2 November 2013 Anne of Green Gables (1991, Prince Edward Island) – Gilbert Joseph and the Amazing Technicolor Dreamcoat (1992–1993, Canada and United States) – Benjamin & Joseph Mission Saigon (1993–1994, Toronto) – Chris (Understudy) Tommy (1995–1996, Toronto) – Tommy The House of Martin Guerre (1997, Toronto) – Guillaume Rock and Roll (1997, Toronto) – Screamin" John McGee Les Misérables (1998–2000, 3rd North American Tour) – Marius Outrageous (2000, Toronto) – Martin Anything that Moves (2000, Toronto) – Joel Peggy Sue Got Married (2001, Plymouth, London) – Michael The Magnificent Musicals (2002, United Kingdom Tour) A Night on Broadway (2002, European Tour) Tonight"s the Night (2003–2004, London) – Stu Clutterbuck On the Town (2005, London/2008, Paris) – Ozzie Rent (2006, Broadway) – Roger Betwixt! (2008, Ambassadors Theatre, concert) – Bailey Last Chance Harvey (2008, feature film starring Dustin Hoffman and Emma Thompson) – Johnnie "Dreamland" (2009, British Broadcasting Corporation animated Doctor Who adventure starring David Tennant) – Jimmy Stalkingwolf "Rock of Ages" (2012, London) – Stacee Jaxx/Father.
