Character's name: "Maj. Gale 'Buck' Cleven"
Birthday: 08/17/1991
Birthplace: Anaheim, California, USA
Biography:
Austin Robert Butler (born August 17, 1991) is an American actor. He began his career on television, first in roles on the Disney Channel and Nickelodeon and later on teen dramas, including recurring parts on The CW's Life Unexpected (2010–2011) and Switched at Birth (2011–2012). He gained recognition for starring in The Carrie Diaries (2013–2014) and The Shannara Chronicles (2016–2017). Butler made his Broadway debut in the 2018 revival of The Iceman Cometh and played Tex Watson in Quentin Tarantino's film Once Upon a Time in Hollywood (2019). In 2022, he achieved wider recognition for his portrayal of Elvis Presley in the musical biopic Elvis, for which he won a Golden Globe Award and received a nomination for the Academy Award for Best Actor.

Character's name: "Maj. John 'Bucky' Egan"
Birthday: 02/15/1990
Birthplace: London, England, UK
Biography:
Callum Robilliard Turner (born February 15, 1990) is a British actor and model. He is known for his roles as Theseus Scamander in Fantastic Beasts: The Crimes of Grindelwald and Fantastic Beasts: The Secrets of Dumbledore, Bill Rohan in Queen and Country, Eli in E4 series Glue and Shaun Emery in the BBC One television series The Capture. For his performance in The Capture, Turner received a nomination for the BAFTA Television Award for Best Actor.

Character's name: "Lt. Harry Crosby"
Birthday: 06/08/1994
Birthplace: Belfast, Northern Ireland, UK
Biography:
Anthony Boyle (born 8 June 1994) is an Irish actor. A graduate of Royal Welsh College of Music and Drama in Cardiff, Boyle began his acting career on London stage and rose to prominence for originating the role of Scorpius Malfoy in the West End and Broadway productions of the British play Harry Potter and the Cursed Child (2016), for which he won the Laurence Olivier Award for Best Actor in a Supporting Role and was nominated for the Tony Award for Best Featured Actor in a Play. He is also known for starring as Geoffrey Bache Smith in the film Tolkien and Alvin Levin in the mini-series The Plot Against America.

Character's name: "Lt. Robert 'Rosie' Rosenthal"
Birthday: 05/29/1999
Birthplace: Los Angeles, California, USA
Biography:
Nate Mann is an American actor. Mann attended Germantown Academy, graduating in 2015. He would first study acting at Walnut Street Theatre, and then at Juilliard School, earning a Bachelor of Fine Arts degree in 2019. Mann made his stage debut in an Off-Broadway production of Little Women, directed by Kate Hamill.

Character's name: "Maj. 'Red' Bowman"
Birthday: 11/30/1979
Birthplace: London, England, UK
Biography:
Stephen Campbell Moore (born Stephen Thorpe; November 30, 1979) is an English actor, best known for his roles in the Alan Bennett play The History Boys and its subsequent film. Description above from the Wikipedia Stephen Campbell Moore, licensed under CC-BY-SA, full list of contributors on Wikipedia.