What are the middle names of the characters in Harry Potter?

The following characters have known middle names:

• Regulus Arcturus Black
• Amelia Susan Bones
• Mary Elizabeth Cattermole
• Fleur Isabelle Delacour
• Albus Percival Wulfric Brian Dumbledore
• Arabella Doreen Figg
• Cornelius Oswald Fudge
• Hermione Jean Granger
• Remus John Lupin
• Edward 'Teddy' Remus Lupin
• Scorpius Hyperion Malfoy
• Harry James Potter
• James Sirius Potter
• Albus Severus Potter
• Lily Luna Potter
• Tom Marvolo Riddle
• Sybill Patricia Trelawney
• Dolores Jane Umbridge
• Ginevra 'Ginny' Molly Weasley
• Percy Ignatius Weasley
• Ronald 'Ron' Bilius Weasley
• William 'Bill' Arthur Weasley