The 37-year-old actor has since taken Hollywood by storm, and looks completely different in his latest project.
Sharing a still from popular TV show Big Sky, the star dons a cowboy hat, along with longer hair and a messy beard.
Standing next to country icon Reba McEntire and CSI: Miami star Rex Linn, he captioned the photo with: “Meet the Barnes family! Big Sky S3 premieres in 2 days!”
Fans were astounded by Luke’s new role, with many shocked that Reba was playing his mum.
“Reba & Rex are gonna play your Mama & Daddy?!?! Can’t wait to watch! So excited for this season!” one fan wrote.
“Dude how freaking cool!” a second added.
“I live for this,” another said.
Since trading Summer Bay for Hollywood with his fellow Home and Away cast member and wife, Rebecca Breeds, the couple have been extremely busy.
Luke has found fame on The CW drama The Republic of Sarah, and Vampire Diaries spin-off Legacies.
Rebecca, who played Ruby Buckton on Home and Away, has found fame on Pretty Little Liars, as well as the title role in The Silence of the Lambs series Clarice.
While some past stars try to sweep their time on Home and Away under the rug, Luke has always looked back on his time in the soap fondly.
He is known for posting throwback photos of his time on the show, which fans absolutely adore.
On the show’s 30th birthday in 2018, he wrote a sweet message about the show on Instagram.
“Happy 30th Home and Away! Thanks for the memories, the lifelong friendships and some of the best years of my life.”
Fans were quick to comment on the post, with many saying they missed him in Summer Bay.
“Ohhh…memories! I miss seeing you guys in Home and Away,” a fan commented.
“That was my favourite era of Home and Away,” another admitted.
“Gosh I remember when you were on Home and Away, I swear all the good ones leave,” added a third.
“Still sad about when Romeo left Home and Away,” remarked another.
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