This gallery is by no means exhaustive (and is likely to also be out of date); its purpose it just to give you a glimpse of some of the most prominent actors in the Harry Potter films. For larger image galleries, visit websites like The Leaky Cauldron.

Daniel Radcliffe (Harry Potter) (click on a thumbnail for the larger image):

Rupert Grint (Ron Weasley) (click on a thumbnail for the larger image):

Emma Watson (Hermione Granger) (click on a thumbnail for the larger image):

Trio pics (Dan, Rupert & Emma) (click on a thumbnail for the larger image):

Tom Felton (Draco Malfoy) (click on a thumbnail for the larger image):

Sean Biggerstaff (Oliver Wood); James & Oliver Phelps (Fred & George Weasley); Christian Coulson (Tom Riddle); Matthew Lewis (Neville Longbottom); Chris Rankin (Percy Weasley)
(click on a thumbnail for the larger image):

Richard Harris (Albus Dumbledore) & Maggie Smith (Minerva McGonagal) & Miriam Margoyles (Prof. Sprout) (click on a thumbnail for the larger image):

Alan Rickman (Severus Snape) & Robbie Coltrane (Rubeus Hagrid) (click on a thumbnail for the larger image):

Keneth Branagh (Gilderoy Lockhart) & Jason Isaacs (Lucius Malfoy) (click on a thumbnail for the larger image):

Cast ensemble pics (click on a thumbnail for the larger image):