Holly Willoughby dressed as Morticia Addams for a Halloween-themed episode of 'Celebrity Juice'.

Holly Willoughby from Instagram (c)

Holly Willoughby from Instagram (c)

The 37-year-old TV presenter swapped her usual bubbly blonde look for a spookier style - after transforming herself into the gothic fictional character from 'The Addams Family' television and film series for an appearance on the British comedy show.

The 'This Morning' host stunned in a plunging latex floor-length black dress with a long dark brunette wig, a heavy eye look with a cherry-red lip and a statement ring and matching red manicure.

She wrote on Instagram: "Well its Halloween again on @celebjuiceofficial ... Morticia is out to play ... thank you @mrwilliamwilde for the most perfect dress! Ring by @vickisarge shoes @ginashoesofficial ... @patsyoneillmakeup and @angiesmithstudio you're the BEST!" (sic)

Holly was flooded with comments from fans who loved her look, one even suggesting she play the iconic role in a remake of the show.

One user wrote: "I was thinking remake of Addams family. You'd be swell as Morticia (sic)"

Holly wasn't the only panelist who dressed up for the occasion, with her co-star and long-time friend Fearne Cotton channelling her inner assassin in a replica of the yellow ensemble worn by Uma Thurman in 'Kill Bill'.

The TV personality appeared in an exact copy of the outfit worn by Uma in Quentin Tarantino's gory thriller - complete with a long blonde wig, a Samurai sword and cuts and bruises on her face.

Meanwhile, Keith Lemon - who hosts the comedy show - dressed up as David from 1987 vampire flick 'The Lost Boys', complete with prosthetic eyebrows, fake fangs and amber contact lenses.