GLADIATORS star Panther has been spotted looking completely unrecognisable as she celebrates her birthday in an Instagram snap.

TV star Helen O’Reilly – who was part of the original cast of the popular ITV game show in 1992 – posed for a series of photos.

The TV star looks unrecognisable 30 years on from the programmeCredit: Rex Features

Helen told fans she was celebrating her birthday this weekCredit: INSTAGRAM

Helen shocked fans by revealing she was going to turn 61 on her birthday, which she will celebrate later this week.

The Panther star could be seen posing with Mick Wilson, who was Cobra in ITV series Gladiators, for an anniversary snap.

Celebrating 30 years of the hit show, she went on to smile for snaps with other former co-stars including Mark Griffin, known as Trojan, and Diane Youdale, who went by Jet.

In the caption, Helen revealed she was celebrating her birthday this week as she turned 61 – prepping fans for another glam snap.

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“Happy 30th Anniversary to all my GladFam!” Helen penned. “Haven’t posted anything for a while but this deserves to be celebrated!

“Thank you all for being such a wonderful group who have been my firm friends for half my life.

“I’ll be doing another celebration on Friday when I turn 61.”

Fans were left in shock at her age and took to the comments section to gush over the star as “looking great” and “beautiful”.

“Still as beautiful as ever, Helen,” one gushed, as a second chimed in: “I can’t believe that it’s been 30 years! Happy anniversary Helen.”

“Always looking so great!” a third added, as a fourth concluded under the snaps: “Looking stunning as always.”

Helen is best known for taking part in the original series of Gladiators, which first hit screens on ITV back in the 1990s.

The champion bodybuilder reigned as Miss Central Britain, Miss Europe, Miss North Britain, Miss England, Miss World, Miss Great Britain, Miss Russia and Miss Universe.

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After the 5th series of Gladiators in 1996, Helen decided to hang up her Lycra outfit before opening up her own fashion shop.

Helen now runs her own gym, Panthers Gym, in Uxbridge – only briefly reviving her Gladiators career in 2008 on Sky One.

Helen now runs her own gym after quitting her Gladiators roleCredit: Rex Features