We posted this on our Facebook page last night, and now we thought we’d share it here.

Spoiler alert!

UPDATE: As promised, J.K. Rowling and Lord Voldemort appeared during the Opening Ceremonies. See photos!

As heavily rumored, tonight’s Opening Ceremonies will involve lots of famous British characters including Lord Voldemort himself. Check out this photo of him from last night’s rehearsal:

Other characters set to make an appearance reportedly include Mary Poppins, Alice from Alice in Wonderland, Captain Hook from Peter Pan, and Cruella de Vil from 101 Dalmatians.

In the United States, the Opening Ceremonies air tonight on NBC at 7:30 p.m. ET/PT. Check your local listings for other airtimes.