who are the main characters in this series?
Harry PotterHarry, Ron, Hermione, Ginny Weasley and Fred and George Weasley
Harry Potter and the Order of the Phoenix
During the summer holidays, 15-year-old Harry Potter and his cousin Dudley are attacked by Dementors. Forced to use magic to fend them off, Harry is expelled from Hogwarts, but his expulsion is postponed pending a hearing at the Ministry of Magic. Harry is eventually whisked off to Number 12, Grimmauld Place, the childhood home of Sirius Black, by a group of wizards belonging to the Order of the Phoenix.

Ron Weasley and Hermione Granger explain that the Order is a secret organisation led by Hogwarts headmaster Albus Dumbledore, dedicated to fighting Lord Voldemort and the Death Eaters. Harry, Ron, Hermione, Ginny Weasley and Fred and George Weasley learn that Voldemort is seeking something he lacked prior to his defeat. The Ministry, led by Cornelius Fudge, refuses to accept Voldemort's return, and are running a smear campaign against Harry and Dumbledore. At the hearing, Dumbledore speaks on Harry's behalf, leading to him being cleared of all charges.
harry potter order of the pheonix word count It is the longest book of the series.
wiki:1148685
Harry Potter and the Order of the Phoenix [SEP] Plot
During the summer holidays, 15-year-old Harry Potter and his cousin Dudley are attacked by Dementors. Forced to use magic to fend them off, Harry is expelled from Hogwarts, but his expulsion is postponed pending a hearing at the Ministry of Magic. Harry is eventually whisked off to Number 12, Grimmauld Place, the childhood home of Sirius Black, by a group of wizards belonging to the Order of the Phoenix. Ron Weasley and Hermione Granger explain that the Order is a secret organisation led by Hogwarts headmaster Albus Dumbledore, dedicated to fighting Lord Voldemort and the Death Eaters. Harry, Ron, Hermione, Ginny Weasley and Fred and George Weasley learn that Voldemort is seeking something he lacked prior to his defeat.