Filming for the special was supposed to have started in March of last year and be part of the launch for HBO Max, but shooting was delayed by the pandemic (via Variety). They finally were able to begin filming the special in April of this year, and on May 13, HBO Max dropped a teaser trailer confirming that the show will air on May 27, 2021.
According to BBC America, it has been confirmed that all six main players will be returning for the reunion, as well as series creators David Crane and Marta Kauffman. However, these won’t be the only faces we’ll be seeing. Multiple fan favorites are also reported to make appearances, including James Michael Tyler, who played Gunther, the Central Perk Barista with a crush on Rachel; Maggie Wheeler, who played Janice, Chandler’s on-again, off-again girlfriend; Elliott Gould and Christina Pickles, who appeared as Jack and Judy Geller, parents of Monica and Ross, Reese Witherspoon, who played Rachel’s sister Jill; Tom Selleck, who portrayed Dr. Richard Burke, one of Monica’s most significant relationships; and Larry Hankin, who played Mr. Heckles, the curmudgeonly downstairs neighbor who dies in Season 2. Unfortunately, Paul Rudd, who played Phoebe’s husband Mike Hannigan, will not be able to join.
BBC America also reports that they’ll also be joined by special celebrity guests such as David Beckham, Justin Bieber, BTS, James Corden, Cindy Crawford, Cara Delevingne, Lady Gaga, Kit Harington, Mindy Kaling, and even Malala Yousafzai, who is the youngest Nobel Prize laureate in history.