[5][6][7] The first teaser trailer, featuring hosts Chris Brown and Julia Morris in a 60s airline themed promo, was released on 20 February 2023.
[3][8] On 28 March 2023, the first contestant was revealed by Network 10, prior to the premiere of the first episode, to be radio presenter Woody Whitelaw.
[9][10][11] On 2 April 2023, hours prior to the premiere, four more celebrities were revealed as television personality Ian Dickson, actress Debra Lawrance, reality contestant Domenica Calarco[12] and television personality Kerri-Anne Kennerley.
During his entry into the jungle, the camp mates had to guess his identity incorrectly in a celebrity guessing challenge, ensure that he picked the shortest straw so that he had to retrieve a key from a snake-filled box and to call him by the incorrect name throughout his first night.
In episode 8, Debra and Nathan were separately given the opportunity to win their camp mates' crackers and vegemite, by staying 3 metres away and close to each other without the other noticing.