The 30-year-old professional dancer said she believed Badger to be her fellow pro, 38.
The Glitterball winner said she’s thought the same last week, and the new episode had reaffirmed it.
She was seen responding to ex Strictly partner Danny, 32, on Twitter, in view of her 159,000 followers.
The Hollyoaks actor had initially shared his confident guess with his own 354,000 fans.
He tweeted: “#MaskedSingerUK #Badger @keviclifton,” with a 100 per cent symbol
Oti spotted his comment and quickly agreed, following the Badger’s third performance.
“I think so too, I thought last week too,” the South African star wrote.
She and Danny are not alone in their suspicions, with Twitter inundated with claims Kevin is Badger.
Oti, likely many others, is likely to have heard Kevin perform following his past singing roles on stage.
They were both in the BBC competition from series 13 five years ago, up until 2019.
Danny got to the final of the programme with Oti in 2016, when they lost out to Ore Oduba and Joanne Clifton.
Other clues given for Badger have been, but could be possible fibs, he’s “good at dodging furniture” and when working, he’s “often found in green”.
Kevin meanwhile was also watching The Masked Singer with girlfriend Stacey Dooley, who quipped that he was Badger too.
While not discussing Badger, he shared a video joking about his partner’s mention by Davina McCall in relation to Sausage.
Quoting the panelist, he tweeted: “Thought Sausage was Stace til she opened her mouth @ThisisDavina #MaskedSingerUK.”(sic)
Viewers will have to wait to see who is both Badger and Sausage, as it was Swan who was revealed to be Martine McCutcheon yesterday.
The Masked Singer UK 2021 continues Saturday at 7pm on ITV.