The 15 celebrities find out which professional partners they will train and perform with during their time on the BBC One series.
Three-time Olympic champion Peaty, a breaststroke specialist, signed up after his triumphs at the Tokyo Games this summer.
BBC Breakfast presenter Dan Walker was paired with Nadiya Bychkova, meeting for the first time at Wembley Stadium.
EastEnders actress Rose Ayling-Ellis has been paired with Giovanni Pernice and is the first deaf contestant to appear on Strictly.
Coronation Street star Katie McGlynn was paired with Gorka Marquez, joking that she felt “no pressure” after learning that Marquez had been to the final twice, but had never won the Glitterball Trophy.
CBBC host Rhys Stephenson was paired with Nancy Xu, while Dragon’s Den star and entrepreneur Sara Davies was paired with Aljaz Skorjanec, meeting him for the first time in front of the Angel of the North.
Peep Show star Robert Webb was the first to partner with Australian dancer Dianne Buswell.
On Wednesday, the BBC confirmed that a professional dancer had tested positive for Covid-19 but the launch would not be affected as it was pre-recorded.
“We follow government guidelines to ensure the safety of everyone at the show. “