Walker started his acting career in Montreal as a recurring lead on the series
Student Bodies in 1996-1997, a series lead on
Back to Sherwood and then
Radio Active from 1998-2000. A month after he arrived in Hollywood he booked a series lead on the TV show ''
Maybe It's Me, then Sabrina, the Teenage Witch. Following a holding deal at Warner Bros., he worked on Wicked Minds
, Adopted, Lies and Deception
and then landed a recurring spot on the short-lived ABC sitcom Hot Properties''. In 2006, he played a Neo-Nazi skinhead in the film
Steel Toes. His performance won him a 2006
Phillip Borsos award at the
Whistler Film Festival and the 2008
ACTRA Award for Best Actor. Walker appeared in the 2007
Lifetime film
Abducted: Fugitive For Love. He went on to guest-star on
ER,
CSI: Miami,
CSI: NY,
Without a Trace,
Reba, and
The Big Bang Theory. In 2010, he guest-starred in the
Fox comedy series
Sons of Tucson, the
Spaghetti Western film
The Gundown, and was associate producer for the film
Dug Up. In 2011, Walker appeared in a Canadian
western film,
The Mountie (filmed in 2009), and produced four documentaries and reality TV series in development, also serving as a series regular on Lifetime's cop drama
Against the Wall, which was cancelled in December 2011 after thirteen episodes. In 2012, he starred in his first
Hallmark Channel movie
A Bride for Christmas alongside Arielle Kebbel. He was reunited with her in Hallmark Movies'
Bridal Wave in 2015 after playing Billy Hamilton in two episodes of
When Calls the Heart in 2014. He starred with Nikki DeLoach in
A Dream of Christmas in 2016 , also starring in
Appetite for Love and
Date with Love. More Hallmark TV movies followed: three more in 2017 (
Love Struck Cafe, The Perfect Catch and
Love on Ice.), three in 2018 (
Secret Valentine,
Wedding March 4 and
Love in Design), and two more in 2019 (
Bottled with Love and
Merry and Bright). He has also starred in several films for Hallmark Mystery, formerly Hallmark Movies and Mysteries:
Wedding Planner Mystery in 2014, ''Debbie Macomber's Dashing Through the Snow
in 2015 and Christmas on My Mind
in 2019. His first film during SARS-COV-2 (COVID-19) was Christmas Tree Lane
with Alicia Witt, also reuniting for the third time with real-life friend Nikki DeLoach in Sweet Autumn'', both for Hallmark Mystery, in 2020. In April 2022, Walker signed a multi-picture contract with
Crown Media Family Networks. He has starred in several more films for Hallmark, three in 2021, one in 2022 (
Three Wise Men and a Baby), two in 2023, three in 2024 and five in 2025. In 2022, he made his first appearance in the
Curious Caterer series of movies, appearing in two more both in 2023 and 2024. Counting all his movies for both channels, he has appeared in a total of 38 films, making him one of the most featured leading men in the Hallmark system (see filmography below). ==Filmography==