Starting as a child actor, Reid did extensive voice work for Canadian and American children's television and was the original voice of the title character in
Franklin from 1997 to 2002. While at Etobicoke School of the Arts, he co-starred in
Strange Days at Blake Holsey High (2002–2006). In 2005, Reid played Darrell Fox in the made-for-television movie
Terry, dramatizing
Terry Fox's
historic run for cancer research. In 2007, he appeared in the
Naturally, Sadie episode "
As the Whirly Turns". In 2009, he guest-starred in the
Degrassi: The Next Generation episode "
Danger Zone". Reid's first leading role in a feature film was Farley Gordon in
Score: A Hockey Musical, which premiered at the
2010 Toronto International Film Festival. He then played several guest roles on television, including in the
police drama Rookie Blue (2012, the project on which he met future wife
Clare Stone) and the drama series
Cracked (2013). In 2013, he also starred in the
CW web series Backpackers. In 2015, Reid appeared briefly in the first episode of
Annie Murphy's CBC television series
The Plateaus. That year, he played the lead role in the
ABC Family comedy series
Kevin From Work, which was canceled after one season. In 2016, Reid was nominated for a
Canadian Screen Award for
Best Original Song for his work in the feature film
People Hold On (2015), in which he also starred. He also released a self-produced full-length original album,
Songs From a Broken Chair. In 2017, Reid played the recurring role of Patrick in the
third season of the
CBC series ''
Schitt's Creek. That year, he was also cast in the independent film Cardinals'' opposite
Sheila McCarthy, which premiered at the
2017 Toronto International Film Festival. In 2018, Reid was promoted to a series regular on ''Schitt's Creek
, beginning with its fourth season. He also performed in a production of Hamlet at the Tarragon Theatre in Toronto. He appeared in the films Buffaloed and Disappearance at Clifton Hill, both released in February 2020. Also in February, Reid embarked on a sold-out tour across North America to support his then-upcoming second album. However, two-thirds of the original dates had to be indefinitely postponed due to the COVID-19 pandemic. The album, Gemini'', was released on May 29, 2020; the album's cover alluded to Reid's dual status as a musician and actor by depicting a
Gemini Award statuette. Reid made his Broadway debut in April 2022, joining the original Broadway cast of
Tracy Letts's
The Minutes, and released his third album,
Adjustments, in June 2022. In the same year he also appeared as a guest musician on
Artefact, the debut album by
Clever Hopes. On April 25, 2023, Reid announced a 26-city world tour, featuring stops in six countries, scheduled for the autumn of 2023. On May 2, 2023, dates in nine more cities were announced, extending the tour into January of 2024. In 2024, Reid appeared in
Murder in a Small Town and starred in the
Coal Mine Theatre's production of
Samuel D. Hunter's
A Case for the Existence of God. in the spring, and announced a 33-city tour of the US and Canada scheduled for the fall of 2025. ==Personal life==