January

Alex Meraz: January 10, 1985 (Paul)
Daniel Cudmore: January 20,1981 (Felix)
Booboo Stewart: January 21, 1994 (Seth Clearwater)
Julia Jones: January 23, 1981 (Leah Clearwater)
Charlie Bewley: January 25, 1981 (Demetri)
Cameron Bright: January 26, 1993 (Alec)

February

Rachelle Lefevre: February 1, 1979 (Victoria)
Michael Sheen: February 5, 1969 (Aro)
Tyson Houseman: February 9, 1990 (Quil Ateara)
Taylor Lautner: February 11, 1992 (Jacob Black)
Sarah Clarke: February 16, 1972 (Renee Dwyer)
Ashley Greene: February 21, 1987 (Alice Cullen)
Dakota Fanning: February 23, 1994 (Jane)

March

Bryce Dallas Howard: March 2, 1981 (Victoria)
Chaske Spencer: March 9, 1975 (Sam Uley)
Edi Gathegi: March 10, 1979 (Laurent)
Kellan Lutz: March 15, 1985 (Emmett Cullen)
Kiowa Gordon: March 25, 1990 (Embry Call)
Tinsel Korey: March 25 (Emily)

April

Kristen Stewart: April 9, 1990 (Bella Swan)
Catalina Sandino Moreno: April 19, 1981 (Maria)

May

Robert Pattinson: May 13, 1986 (Edward Cullen)
Nikki Reed: May 17, 1988 (Rosalie Hale)
Justin Chon: May 29, 1981 (Eric)

June

Elizabeth Reaser: June 15, 1975 (Esme Cullen)
Graham Greene: June 22, 1952 (Harry Clearwater)

July

Gil Birmingham: July 13, 1966 (Billy Black)
Michael Welch: July 25, 1987 (Mike)

August

Anna Kendrick: August 9, 1985 (Jessica)
Cam Gigandet: August 16, 1982 (James)
Melissa Rosenberg: August 28, 1962 (Twilight Saga Screenwriter)

September

Christian Serratos: September 21, 1990 (Angela)
David Slade: September 26, 1969 (Eclipse Director)
Kirsten Prout: September 28, 1990 (Lucy)

October

Jodelle Ferland: October 9, 1994 (Bree)
Catherine Hardwicke: October 21, 1955 (Director of Twilight)

November

Jamie Campbell Bower: November 22, 1988 (Caius)
Billy Burke: November 25, 1966 (Charlie Swan)
Peter Facinelli: November 26, 1973 (Carlisle Cullen)
Chris Weitz: November 30, 1969 (Director of New Moon)

December

Jack Huston: December 7, 1982 (Royce King)
Xavier Samuel: December 10, 1983 (Riley)
Jackson Rathbone: December 21, 1984 (Jasper Hale)
Stephenie Meyer: December 24, 1973 (Author of Twilight Saga)
Bronson Pelletier: December 31, 1986 (Jared)