NBC’s bringing the big U.K. charity telethon Red Nose Day to the States later this month, and the list of celebs signing up for the show continues to grow. Vulture hears Jodie Foster, Neil Patrick Harris, Community’s Danny Pudi, and Anna Camp have now agreed to appear on the three-hour event, which is being produced with Funny or Die and will be directed by Richard Curtis (Love, Actually). Other big names who have just signed on: Reese Witherspoon, Julia Roberts, Jennifer Aniston, and a slew of cast members from Game of Thrones (including Peter Dinklage and Emilia Clarke). As with the British telethon, NBC’s version of Red Nose Day will include live music, sketches, and pretaped films (produced here by Funny or Die.) And yes, the stars really will be seen wearing red noses (or juggling them, as Neil Patrick Harris can be seen doing in a photo released by NBC). The event will air May 21 from 8 to 11 p.m., with proceeds going to charities designed to lift kids out of poverty.