Suggestions by @taramcgrath1

Tom Taylor

as Gilderoy Lockhart in Alternate Harry Potter Cast (2001-2011)

Freddie Highmore

as Cedric Diggory in Alternate Harry Potter Cast (2001-2011)

Cho Yi-hyun

as Cho Chang in Alternate Harry Potter Cast (2001-2011)

Chris Brochu

as Draco Malfoy in Alternate Harry Potter Cast (2001-2011)

Noah Centineo

as George Weasley in Alternate Harry Potter Cast (2001-2011)

Noah Centineo

as Fred Weasley in Alternate Harry Potter Cast (2001-2011)

Dick Van Dyke

as Lord Voldemort in Alternate Harry Potter Cast (2001-2011)

Tina Fey

as Minerva McGonagall in Alternate Harry Potter Cast (2001-2011)

Sadie Sink

as Luna Lovegood in Alternate Harry Potter Cast (2001-2011)

Natalia Dyer

as Ginny Weasley in Alternate Harry Potter Cast (2001-2011)

Kiernan Shipka

as Hermione Granger in Alternate Harry Potter Cast (2001-2011)

Aaron Taylor-Johnson

as Ron Weasley in Alternate Harry Potter Cast (2001-2011)

Timothée Chalamet

as Harry Potter in Alternate Harry Potter Cast (2001-2011)