[7] On 6 December 2017, in an interview with Ryan Tubridy on his breakfast show on RTÉ Radio 1, it was revealed that Maïa Dunphy would be taking part in the series.
[9] On 20 December 2017, previously confirmed celebrity, Aoife Walsh, was forced to pull out of the show due to injury; she was replaced by Alannah Beirne.
Unless indicated otherwise, individual judges scores in the charts below (given in parentheses) are listed in this order from left to right: Brian Redmond, Loraine Barry, Julian Benson.
Guest act: Series 1 champions, Aidan O'Mahony and Valeria Milova performing a Charleston to 'I Got a Woman' Individual judges scores in the charts below (given in parentheses) are listed in this order from left to right: Brian Redmond, Loraine Barry, Darren Bennett.
Guest act: Brendan Cole and Faye Huddleston performing a Rumba to 'Fields of Gold' Julian Benson returned to the panel following a two-week absence.