Disclaimer: I am not George Lucas or J.K. Rowling.
Here are the characters in this story:
Harry Potter - Luke Skywalker (age 13), third year
Ron Weasley - Han Solo (age 13), third year
Hermione Granger - Leia Organa (age 14), third year
Ginny Weasley - Mara (Jade) Solo (age 12), second year
Fred Weasley - (Ton) Phanan Solo (age 15), fifth year
George Weasley - Face (Loran) Solo (age 15), fifth year
Percy Weasley - Jacen Solo (age 17), seventh year
Molly Prewett Weasley - Jaina Solo (age 47), mother to Han Solo
Arthur Weasley - Jonash Solo (age 47), Head of the Misuse of Mundane Artifacts Office
Errol - Fiver (age 81), astromech owl
Sir Cadogan - Gantoris (deceased), knight
Draco Malfoy - Galen Marek (age 13), third year
Lucius Malfoy - Dooku Marek (age 41), aristocrat (mention only)
Vincent Crabbe - Cornelius Evazan (age 13), third year
Gregory Goyle - Ponda Baba (age 13), third year
Albus Dumbledore - Yoda (age 112), Grand Master
Minerva McGonagall - Mon Mothma (age 72), Master of Metamorphosis
Filius Flitwick - Sio Bibble (age 72), Master of the Force
Severus Snape - Darth Vader (age 33), Master of Potions
Remus "Moony" Lupin - Qui-Gon "Sivrak" Jinn (age 33), Master of Defense Against the Dark Side of the Force
Lord Voldemort / Tom Riddle - Lord Sidious / Cosinga Palpatine (age 67), Dark Lord of the Sith (mention only)
Sirius "Padfoot" Black - Obi-Wan "Ben" Kenobi (age 34), fugitive
Rubeus Hagrid - Chewbacca (age 64), Master of Animal Friendship
Argus Filch - Jurokk (age 56), caretaker
Walden Macnair - Savage Opress (age 40), executioner
Colin Creevey - Dak Ralter (age 12), second year
Hedwig - Artoo Detoo (age 13), astromech droid
Oliver Wood - Tycho Celchu (age 17), seventh year
Angelina Johnson - Dia Passik (age 15), fifth year
Alicia Spinnet - Shalla Nelprin (age 15), fifth year
Katie Bell - Tahiri Veila (age 14), fourth year
Cedric Diggory - Biggs Darklighter (age 16), fifth year
Cho Chang - Callista Ming (age 14), fourth year
Roger Davies - Geith Eris (age 15), fifth year
Cassius Warrington - Bruck Chun (age 16), sixth year
Graham Montague - Sora Bulq (age 15), fifth year
Peregrine Derrick - Reck Desh (age 16), sixth year
Lucian Bole - Cad Bane (age 16), sixth year
Rolanda Hooch - Garven Dreis (age 59), coach
Vernon Dursley - Owen Lars (age 44), uncle to Luke Skywalker
Petunia Dursley - Beru Lars (age 44), aunt to Luke Skywalker
Marge Dursley - Dama (Brunk) Lars (age 46), sister to Owen Lars
Dudley Dursley - Laze Loneozner Lars (age 13), cousin to Luke Skywalker
Marcus Flint - Moradmin Bast (age 18), seventh year
Penelope Clearwater - Tenel Ka Djo (age 17), seventh year
Lee Jordan - Wes Janson (age 15), fifth year
Pansy Parkinson - Vestara Khai (age 13), third year
Neville Longbottom - Wedge Antilles (age 13), third year
Seamus Finnagan - Nien Nunb (age 13), third year
Dean Thomas - Lando Calrissian (age 13), third year
Poppy Pomfrey - Vokara Che (age 47), nurse
Parvati Patil - Winter Retrac (age 13), third year
Godric Gryffindor - Darth Revan (deceased), founder
Salazar Slytherin - Exar Kun (deceased), founder
Rowena Ravenclaw - Bastila Shan (deceased), founder
Helga Hufflepuff - Meetra Surik (deceased), founder
Cuthbert Binns - Vodo Siosk-Baas (deceased), Master of Galactic History
Nicholas de Mimsy Porpington - Canderous Ordo (deceased), spirit of House Revan
Bloody Baron - Jace Malcom (deceased), spirit of House Kun
Fat Friar - Mission Vao (deceased), spirit of House Surik
Helena Ravenclaw - Satele Shan (deceased), spirit of House Shan
Peeves - Bogan (amortal), Force entity
Rosmerta - Ackmena (age 43), bartender
Fang - Drang (age unknown), vornskr
Florean Fortescue - Vidar Kim (age 46), ice cream proprietor
Septima Vector - Sifo-Dyas (age 34), Master of Precognition
Giant Squid - Colo Claw Fish
Tom - Wuher (age 47), bartender
Cornelius Fudge - Cal Omas (age 47), Chief of State
Peter "Wormtail" Pettigrew - Nute "Viceroy" Gunray (age 34), Sith servant
Crookshanks - Anji (age unknown), nexu
Hermes - SD-XX (age 17), astromech droid
Stan Shunpike - Nick Rostu (age 18), conductor of the Far Ranger
Ernie Prang - Qorl (age 75), pilot of the Far Ranger
Irma Pince - Jocasta Nu (age 82), archivist
Aurora Sinistra - Tionne Solusar (age 43), Master of Astronomy
Lavender Brown - Bria Tharen (age 13), third year
Buckbeak - Boga (age unknown), varactyl
Ernie McMillan - Corran Horn (age 13), third year
Hannah Abbot - Iella Wessiri (age 13), third year
Justin Finch-Fletchley - Ooryl Qrygg (age 13), third year
Susan Bones - Mirax Terrik (age 13), third year
Pomona Sprout - Yaddle (age 70), Master of the Living Force
Mafalda Goshawk - Mander Zuma (age 51), author (mention only)
Sybill Trelawney - Roan Shryne (age 32), Master of Farseeing
James "Prongs" Potter - Anakin "Tan" Skywalker (deceased), member of the Jedi Order
Lily Evans Potter - Padme Amidala Skywalker (deceased), member of the Jedi Order
Ripper - Sturm (age unknown), vornskr
Bathilda Bagshot - Voren Na'al (age 90), author
Wendelin the Weird - Moranda Savich (deceased), historical figure (mention only)
Fubster - Brunk (age 50), colonel (mention only)
Marsh - Vima-Da-Boda (age 200), passenger
Cassandra Vablatsky - Nomi Sunrider (deceased), author (mention only)
Silvanus Kettleburn - Djinn Altis (age 60), retired Master of Animal Friendship (mention only)
Bilius Weasley - Randil Sal (deceased), uncle of Han Solo (mention only)
Binky - Pavik (deceased), rabbit (mention only)
Ambrosius Flume - Dexter Jettster (age 66), proprietor of Dex's Donuts
Derek - Liam (age 11), first year
Pigwidgeon - Whistler (age unknown), astromech droid
The Grim - The Vua'sa (age unknown), omen of death (mention only)
Dobby - I-5YQ "I-Five" (age 28), protocol droid (indirect mention only)
Locations:
Hogwarts School - Jedi Temple
Azkaban - Kessel
Gringotts Bank - Muunilinst
Leaky Cauldron - Chalmun's Cantina
The Three Broomsticks - Dex's Diner
Diagon Alley - Mos Eisley
Hogsmeade - CoCo Town
Shrieking Shack - Valley of the Jedi
Florean Fortescue's - Vidar Kim's
Flourish and Blotts - Obroa-skai
Honeydukes - Dex's Donuts
Forbidden Forest - Unknown Regions
Surrey - Tatooine
Number 4, Privet Drive - Lars Homestead
Platform 9 3/4 - Docking Bay 94
KIng's Cross Station - Mos Eisley Spaceport
Quidditch Pitch - Podrace Field
Madam Malkin's - Shmi Skywalker's
London - Coruscant
Hogsmeade Station - Docking Bay 327
Hogwarts Express - Jedi Cruiser
Species:
Human - Human
Goblin - Muun
Dementor - Tusken
Half-Giant - Wookiee
Boggart - Gurlanin
Muggle - Mundane
Wizard - Force wielder
Hippogriff - Varactyl
Boarhound - Vornskr
Kneazle - Nexu
Grindylow - Dinko
Hinkypunk - Ysalamir
Red Cap - Chazrach
Owl - Astromech droid
Ghost - Force spirit
Poltergeist - Force entity
House-elf - Protocol droid (mention only)
Squib - Void in the Force
Organization
Gryffindor - Revan
Slytherin - Kun
Ravenclaw - Shan
Hufflepuff - Surik
Death Eater - Sith Order
Order of the Phoenix - Jedi Order
Ministry of Magic - Galactic Republic
Other:
Wizard's Chess - Dejarik
Quidditch - Smashball
Knight Bus - Far Ranger
Bludgers - Dovin basals
Quaffle - Grav-ball
Golden Snitch - Golden Globe
Patronus Charm (Expecto Patronum) - Force Aura (Tutaminis)
Apparition - Force Travel
Disarming Charm - Force Disarm
Confundus Charm - Force Confusion
Wolfsbane Potion - Bacta
Ancient Runes - Mando'a
Accidental Magical Reversal Squad - Antarian Rangers
Hit Wizards - Gray Paladins
