Daniel Radcliffe as Harry Potter
Rupert Grint as Ron Weasley
Emma Watson as Hermione Granger
The series also features a large ensemble cast including:
* Alan Rickman as Severus Snape
* Maggie Smith as Minerva McGonagall
* Robbie Coltrane as Rubeus Hagrid
* Tom Felton as Draco Malfoy
* Michael Gambon as Albus Dumbledore
* Ralph Fiennes as Lord Voldemort
* Gary Oldman as Sirius Black
* Bonnie Wright as Ginny Weasley
* Matthew Lewis as Neville Longbottom
* Evanna Lynch as Luna Lovegood
* James Phelps and Oliver Phelps as Fred and George Weasley
* Jason Isaacs as Lucius Malfoy
* Imelda Staunton as Dolores Umbridge
* Brendan Gleeson as Alastor "Mad-Eye" Moody
* Julie Walters as Molly Weasley
* Mark Williams as Arthur Weasley
This is just a partial list, as the Harry Potter films feature a large and diverse cast of characters.