These characters are not mine I hope you know, and the Romeo and Juliet plot belongs to Shakespeare who I believe would turn in his grave if he ever read this.....
Two houses, both alike in dignity
In the castle of Hogwarts where we lay our scene
From ancient grudge break to new mutiny
Where wizard blood makes wizard hands unclean
From forth the fatal loins of these two foes
A pair of star-crossed lovers takes their lives
Whose misadventured, piteous overthrows
Doth with their death bury their houses strife
The fearful passage of their death-marked love
And the continuance of their houses rage
Which but their friends end naught could remove
Is now the five-chapter-long story of our stage
The which of you with patient ears attend
What here shall miss my toil shall strive to mend
The persons of the play:
Capulets (Gryffindors)
Juliet: Harry
Father: Sirius
Mother: Remus
Tybalt: Ron
Nurse: Hermione
Peter: Neville
Montagues (Slytherins)
Romeo: Draco
Father: Snape
Mother: Pansy
Benvolio: Crabbe
Mercutio: Goyle
Balthazar: Blaize
Other person in the play
Paris: Victor Krum
Prince: Fudge
Page: the house-elf Blinky
Friar Laurence: Madam Pomfrey