I have made of the first and last four people of our cast index. 
And few relationships. 

⒈ Perseus "Percy" Alexandros Jackson-

⒉ Anastasia Astra Adele (Olympia)-

⒊ Thalia Andrea Grace-

⒋ Nicholas Ercole Stephano Di Angelo-

⒒ Harold "Harry" James Remus Potter-

⒓ Ginevra "Ginny" Molly Weasley- 

⒔ Blaise Nathaniel Zabini-

⒕ Ronald "Ron" Bilius Weasley-

Percy x Anastasia 

The Complicated Siblings who are really Cousins 

The Golden Trio