Other attendees at this year’s ceremony include leading actor nominees Ralph Fiennes, Sebastian Stan, Hugh Grant, Adrien Brody, Colman Domingo and Timothee Chalamet – as well as Kate Winslet, who stars in Bafta-nominated film Lee, and Jesse Eisenberg, whose film A Real Pain is nominated.
Erivo, 38, who started off as a theatre and West End star, is one of two British stars nominated in the leading actress category, alongside Marianne Jean-Baptiste for comedy drama Hard Truths.
Moore, 62, is nominated in the leading actress category and has already picked up gongs at the Critics Choice Awards and Golden Globes for her role in body horror film The Substance.
Among the celebrities who will present prizes are pop singer Camila Cabello, The Lord Of The Rings actor Orlando Bloom, Scottish actor James McAvoy and Pitch Perfect actress Anna Kendrick.
Zoe Saldana and Selena Gomez, stars of Emilia Perez and Bafta nominees, are to present prizes at the awards, with actress Gascon unconfirmed among those attending, amid criticism over a number of tweets.