Coughlan, who was up for best actress in a drama for her role as Penelope Featherington in the hit Netflix period drama, paired the outfit with a black Kate Spade bag.
Members of rap trio Kneecap, Mo Chara and Moglai Bap, dressed casually in black hoodies and trousers while fellow member JJ O’Dochartaigh wore a suit and his signature Irish flag balaclava.
Ronan, who won best lead actress in a film for her starring role in addiction-recovery drama The Outrun, looked elegant in a strapless sky blue dress for the ceremony at the Dublin Royal Convention Centre on Friday.
Greene wore an all-black outfit of black leather jacket over trousers and a high-neck top, while Horgan wore a deep purple dress with high leg splits.
Saoirse Ronan and Nicola Coughlan were among the Irish stars who stepped out in eye-catching gowns for the Irish Film and Television Academy (Ifta) awards.
