January-March

January 1, 1969	Verne Troyer (Griphook)
January 22	John Hurt's Birthday (63)
January 24, 1930	Terence Bayler (Bloody Baron)
January 27, 1953	Richard Bremmer (Voldemort)
February 3	Warwick Davis' Birthday (33)
February 21	Alan Rickman's Birthday (57)
February 22	Julie Walters' Birthday (53)
February 25	James and Oliver Phelps' Birthday (17)
February 28, 1918	Alfred Burke (Headmaster Armando Dippet)
March 1	Ron Weasley's Birthday
March 13, 1989	Harry Melling (Dudley Dursley)
March 15	Sean Biggerstaff's Birthday (20)
March 27, 1934	Julian Glover (Voice of Aragog)
March 30	Robbie Coltrane's Birthday (53)

April-June

April 15	Emma Watson's Birthday (13)
April 20, 1924	Leslie Phillips (Voice of the Sorting Hat)
May 13	Zoe Wanamaker's Birthday (54)
June 6, 1963	Jason Isaacs (Lucius Malfoy)
June 27, 1989	Matthew Lewis aka Neville Longbottom

July-September

June 21, 2003	Harry Potter and the Order of the Phoenix (Book 5)
July 10, 1958	Fiona Shaw (Petunia Dursley)
July 23, 1989	Daniel Alan Radcliffe's Birthday (14)
July 31	Harry James Potter's Birthday J.K. Rowling's Birthday (38) Richard Griffiths' Birthday (56)
August 23, 1988	Ron Michael (15)
August 24, 1988	Rupert Grint's Birthday (15)
September 18, 1929	Elizabeth Spriggs (The Fat Lady)
September 19	Hermione Granger's Birthday
September 22, 1987	Thomas Felton's Birthday (16)

October-December

October 27	John Cleese's Birthday (64)
November 8	Chris Rankin's Birthday (20)
Nov/Dec 2003	Harry Potter and the Prisoner of Azkaban (Movie)
December 2	Alfie Enoch's Birthday (15)
December 4	Gemma Jones (Madam Pomfrey)
December 7, 1987	Aaron Carter (16)
December 10, 1960	Ken Branagh (Lockhart)
December 28	Dame Maggie Smith's Birthday (69)