Eastenders star Adam Woodyatt is swapping the Square for the Masterchef Kitchen alongside Strictly's Oti Mabuse and Love Island star Dr Alex George.
Reality TV stars Vicky Pattinson and Joey Essex will also attempt to impress judges John Torode and Gregg Wallace.
Other celebrities competing for the coveted title include fashion designer Zandra Rhodes, Olympic medal winner Greg Rutherford, Motown star Martha Reeves, retired footballer Neil Ruddock and The Chase quizzer Jenny Ryan.
The line-up also includes Gogglebox star Dom Parker, comic Josie Long, French actress Elizabeth Bourgine, and radio presenter and actor Mim Shaikh.
DJ and lawyer Judge Jules, BBC weatherman Tomasz Schafernaker, Radio 1's Rickie Haywood-Williams, heavyweight boxer Dillian Whyte, and runner and former Marine Andy Grant complete the line-up.
The 20 celebrities will take part in a number of challenges across the six-week series, including invention tests, a pairs task in which two stars must join forces to cook an identical dish without seeing each other, and cooking for paying customers in a restaurant.
Previous winners include Ade Edmondson, Lisa Faulkner, Angellica Bell, Kimberly Wyatt and Sophie Thompson.
The series will air on BBC later this year.