While the Harry Potter reunion special Return to Hogwarts (now streaming on HBO Max) features a Wizarding World's worth of cast members reuniting, plenty of familiar faces are absent.
Aside from those who have died since appearing in the films—including Alan Rickman (Severus Snape), Helen McCrory (Narcissa Malfoy), and John Hurt (Mr. Ollivander), among others—many prominent alums of the blockbuster film series simply did not take part.
Here's a rundown of the Harry Potter stars you won't see while watching the reunion—unless you've somehow managed to master a Summoning Charm.
Michael Gambon (Albus Dumbledore)
One of the most notable absences from the reunion is Michael Gambon, who played Hogwarts Headmaster Albus Dumbledore for the majority of the Potter films. Gambon took over the role following the death of Richard Harris, who played Dumbledore in Sorcerer's Stone and Chamber of Secrets.
Maggie Smith (Minerva McGonagall)
While decorated Downton Abbey star Maggie Smith appears in Return to Hogwarts via archive footage—J.K. Rowling–style—the erstwhile Professor McGonagall did not grace the reunion in person.
Robert Pattinson (Cedric Diggory)
Twilight fans may recall that Robert Pattinson popped up in Harry Potter and the Goblet of Fire as doomed Hufflepuff Cedric Diggory before taking on the role of Twilight's Edward Cullen. However, he does not pop up in the reunion special.
Julie Walters (Molly Weasley)
Despite her onscreen husband Mark Williams appearing in Return to Hogwarts, Julie Walters, who played the Weasley family matriarch Molly in six of the eight Potter films, does not. While it's unclear exactly why she sat out the reunion, it's worth noting that Walters revealed she would largely retire from acting in 2020, following a previously undisclosed bout of cancer.
David Thewlis (Remus Lupin)
Return to Hogwarts viewers won't see hide nor hair of David Thewlis, who played werewolf Remus Lupin starting with the series' third entry, Harry Potter and the Prisoner of Azkaban.
Kenneth Branagh (Gilderoy Lockhart)
Return to Hogwarts is a bit scant on Defense Against the Dark Arts professors: Kenneth Branagh, who played the ill-fated Gilderoy Lockhart in Chamber of Secrets, doesn't appear in the reunion either. Perhaps he was a bit busy finishing up and promoting Belfast, his latest, widely praised directorial effort.
Jim Broadbent (Horace Slughorn)
That goes for Potions professors, too, with Jim Broadbent also missing from the reunion. The Oscar winner played Horace Slughorn, who took over the post from the late Alan Rickman's Professor Snape in Harry Potter and the Half-Blood Prince.
Warwick Davis (Professor Flitwick/Griphook)
Warwick Davis appeared throughout the Potter series in various roles, most notably as Charms Professor Filius Flitwick and the goblin Griphook, who helps the central trio break into Gringotts Bank in Deathly Hallows Part 2. He does not, however, appear in Return to Hogwarts.
Harry Melling (Dudley Dursley)
It's perhaps not surprising that Harry Melling is absent from Return to Hogwarts, as the actor has spent the years since playing Harry's spoiled cousin Dudley mostly glad to distance himself from the role. "I think I was very lucky that I was allowed to move away from Dudley," the Queen's Gambit star told EW in 2020. "When you start as a child actor, I think there are certain stigmas you get from that, and I never really wanted to engage in them. I just wanted to continue doing work."
Fiona Shaw (Petunia Dursley)
Nor do Melling's onscreen parents appear in the reunion; Fiona Shaw, who played Harry's Aunt Petunia, is absent, while Richard Griffiths, who played Uncle Vernon, died in 2013.
Brendan Gleeson (Mad-Eye Moody)
Another Defense Against the Dark Arts teacher missing from the special: Brendan Gleeson, who played the eccentric Alastor "Mad-Eye" Moody from the fourth Potter film onwards. Actually, Return to Hogwarts is a completely Gleeson-free affair; Brendan's son Domhnall, who played Bill Weasley in the final two films, does not appear either.
Timothy Spall (Peter Pettigrew)
You can see Timothy Spall (who played Voldemort's lackey Peter "Wormtail" Pettigrew) alongside Kristen Stewart in awards contender Spencer; you won't, however, see him in Return to Hogwarts.
Emma Thompson (Sybill Trelawney)
Emma Thompson gave a relatively brief but memorable performance across several Potter films as Divination Professor Sybill Trelawney, who made the prophecy that bound Harry's fate to Voldemort's. Despite that pivotal role in the series' plot, Thompson's role in the reunion was nonexistent.
David Bradley (Argus Filch)
Speaking of brief but memorable performances: David Bradley, who popped up across nearly every HP film as Hogwarts caretaker Argus Filch, did not make a cameo in the reunion.
Katie Leung (Cho Chang)
What, being Harry Potter's first kiss doesn't merit an invite to the reunion? You won't see Katie Leung, who played Harry's one-time crush Cho Chang, among the many Hogwarts students returning in the special.
Devon Murray (Seamus Finnigan)
Nor will you see Devon Murray, who grew up alongside the series' central trio as Harry's Gryffindor classmate Seamus Finnigan. You know Seamus: "I'm half and half. Me dad's a Muggle. Mam's a witch. Bit of a nasty shock for him when he found out."
Returns to Hogwarts is streaming now on HBO Max.
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