Saturday Night Takeaway has confirmed Hollywood actress Denise Richards will appear in the series finale.
The programme has named Denise as the Special Guest Announcer for this weekend's final episode, broadcasting live from Florida.
Denise, 47, is best known for appearing in movies such as Wild Things, Starship Troopers and James Bond's The World Is Not Enough.
The star - who was previously married to Charlie Sheen - also appeared in Love Actually, Friends, as Ross and Monica's cousin, and had her own reality show called Denise Richards: It's Complicated.
Read more: Ant & Dec nominated for top TV award
Saturday Night Takeaway will broadcast live from Universal Orlando Resort this weekend, with Dec Donnelly once again hosting solo.
His telly partner Ant McPartlin has stepped down from current TV commitments, leaving Dec to front the last two episodes of Saturday Night Takeaway by himself.
Dec will be joined in Florida by Saturday Night Takeaway regulars Scarlett Moffatt and Stephen Mulhern, who flew out to Orlando with a plane of competition winners on Tuesday.
All series, the show has been giving away tickets for a family holiday in Orlando, along with passes to watch the finale being filmed.
Many details of the episode have been kept under wraps so far, but ITV has promised "incredible stunts and superstar guests".
The Rembrandts - famous for the Friends theme song - will perform in Singalong Live, while Stephen will host a special US version of In For A Penny.
The final episode of mini sketch series Saturday Knight Takeaway will also air, along with the regular 'Win The Ads' competition.
Dec hosted Saturday Night Takeaway solo last weekend, for the first time in his career.
Ant, 42, has stepped down from TV work and returned to treatment after being charged with drink-driving in March.
Dec didn't explicitly address his long-time pal's absence during the episode, but joked he had "twice the amount of work to do", and at one point said: "I'll have to do it myself, like everything else this week."
Dec was widely praised by viewers and critics for running a smooth 90-minute show, which saw appearances from Davina McCall, The Script and Paloma Faith, as well as Special Guest Announcer Stephen Merchant.
He thanked everyone for their support just before the programme ended.
The programme was a ratings success, watched by 7.7 million viewers with a 39% share of the audience, ITV has said. The show peaked with 8.6 million viewers.
Meanwhile, Ant & Dec's Saturday Night Takeaway has been nominated for a BAFTA TV Award.
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The primetime series has been recognised in the Best Entertainment Programme category, where it will go up against another of the duo's shows, Britain's Got Talent.
Also nominated in the same category are The Voice UK and Michael McIntyre's Big Show.
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