Julia Roberts, Jennifer Aniston, 'Game of Thrones' stars to appear on Red Nose Day telecast

UNIVERSAL CITY, Calif., May 7 (UPI) -- Julia Roberts, Jennifer Aniston, Julianne Moore, Jodie Foster, Reese Witherspoon and Neil Patrick Harris are among the A-listers booked to appear on NBC's Red Nose Day telethon.

The three-hour live entertainment event is to air May 21. Featuring comedy, videos produced by Funny Or Die, music performances and visits from Hollywood's favorite stars, the benefit will help 12 charity organizations focused on lifting children and young people out of poverty.

Also expected to take part in the fundraising telecast will be the cast of Orange is the New Black, Coldplay, Sienna Miller, Paul Rudd, Olivia Wilde, Eddie Redmayne, Benedict Cumberbatch, Ian McKellen, Orlando Bloom, Leslie Mann, January Jones and Simon Cowell. Others slated to appear include Naomi Campbell, Anna Camp, Jeanne Tripplehorn, Yvette Nicole Brown, Retta, Natalie Morales, Danny Pudi and Rob Huebel.

Stars of Game of Thrones -- even some whose characters have been killed off -- will be seen on the program, as well.