Disclaimer: I am not George Lucas or J.K. Rowling.
Here are the characters in this story:
1997 - 1998
Harry Potter - Luke Skywalker (age 17), fugitive and member of the Jedi Order
Ron Weasley - Han Solo (age 17), fugitive and member of the Jedi Order
Hermione Granger - Leia Organa (age 18), fugitive and member of the Jedi Order
Ginny Weasley - Mara (Jade) Solo (age 16), sixth year
Neville Longbottom - Wedge Antilles (age 17), seventh year and co-leader of Yoda's Rebellion
Luna Lovegood - Qwi Xux (age 16), sixth year and co-leader of Yoda's Rebellion
Fred "Rapier" Weasley (formerly Rodent) - Phanan "Wraith Seven" Solo (age 19), entrepreneur, member of the Jedi Order and Rogue Squadron (formerly Ton)
George Weasley - Face (Loran) Solo (age 19), entrepreneur and member of the Jedi Order
Percy Weasley - Jacen Solo (age 21), Imperial bureaucrat
Charlie Weasley - Kyle (Katarn) Solo (age 23), rancor handler and member of the Jedi Order
Bill Weasley - Ganner (Rhysode) Solo (age 27), banker and member of the Jedi Order
Fleur Delacour - Alema Rar (age 20), member of the Jedi Order
Molly Prewett Weasley - Jaina Solo (age 51), member of the Jedi Order
Arthur Weasley - Jonash Solo (age 51), Head of Confiscation Authority and member of the Jedi Order
Albus Dumbledore - Yoda (deceased), former Grand Master and leader of the Jedi Order
Pius Thicknesse - Rokari Kem (age 50), brainwashed Chief of State
Charity Burbage - Siri Tachi (age 37), Master of Mundane Studies
Gellert Grindelwald - Hego Plagueis (age 117), prisoner of Lusankya and former Dark Lord of the Sith
Draco Malfoy - Galen Marek (age 17), seventh year and Sith Lord
Lucius Malfoy - Dooku Marek (age 45), Sith Lord
Narcissa Malfoy - Nen Yim Marek (age 43), matriarch of the House of Marek and ally of the Sith
Nymphadora Tonks - Noorian Tahl (age 23), stormtrooper and member of the Jedi Order
Kingsley "Royal" Shacklebolt - Kam "Ranik" Solusar (age 47), stormtrooper, member of the Jedi Order, head of Chief Dorvan's security, and member of Rogue Squadron
Percival Dumbledore - N'Kata Del Gormo (deceased), father of Yoda
Rufus Scrimgeour - Borsk Fey'lya (age 47), Chief of State
Minerva McGonagall - Mon Mothma (age 76), Master of Metamorphosis and member of the Jedi Order
Filius Flitwick - Sio Bibble (age 76), Master of the Force
Severus Snape - Darth Vader (age 37), Grand Master and undercover Jedi agent in the Sith Order
Kendra Dumbledore - Ashla Del Gormo (deceased), mother of Yoda
Lord Voldemort / Tom Riddle - Lord Sidious / Cosinga Palpatine (age 70), Dark Lord of the Sith
Yaxley - Ivaar Workan / Kameron Suldar (age 38), Sith Lord and head of the Inquisitorius
Dolores Umbridge - Natasi Daala (age 66), High Inquisitor and Colonel of the Galactic Alliance Guard
Sirius "Padfoot" Black - Obi-Wan "Ben" Kenobi (deceased), member of the Jedi Order
Remus "Moony/Romulus" Lupin - Qui-Gon "Sivrak/Maverick" Jinn (age 37), member of the Jedi Order and Rogue Squadron
Dobby - I-5YQ "I-Five" (age 32), ally of the Jedi
Amycus Carrow - Tsavong Lah (age 47), Sith Lord and Master of the Dark Side of the Force
Alecto Carrow - Lumiya Lah (age 47), Sith Lord and Master of Mundane Studies
Rubeus Hagrid - Chewbacca (age 67), Master of Animal Friendship and member of the Jedi Order
Fenrir Greyback - Boba Fett (age 59), Shistavanen and head of the Mandalorians
Grawp - Scut (age 62), half-brother of Chewbacca
Argus Filch - Jurokk (age 60), caretaker
Horace Slughorn - Jorj Car'das (age 87), Master of Potions and head of the Smugglers' Alliance
Dirk Cresswell - Nawara Ven (age 37), fugitive and former member of the InterGalactic Banking Clan
Ariana Dumbledore - Ahsoka (Tano) Del Gormo (deceased), sister to Yoda
Ambrosius Flume - Dexter Jettster (age 70), proprietor of Dex's Donuts
Colin Creevey - Dak Ralter (age 16), sixth year
Dennis Creevey - Cole (Fardreamer) Ralter (age 14), fourth year
Hedwig - R2-D2 (age 17), astromech droid
Kreacher - PROXY (age 102), servant to Luke Skywalker and ally of the Jedi
Rita Skeeter - Javis Tyrr (age 46), journalist for the HoloNet
Betty Braithwaite - Hallis Saper (age 64), journalist for the HoloNet
Ivor Dillonsby - Vondare Tokare (age 120), alchemist (mention only)
Katie Bell - Tahiri Veila (age 18), ally of the Jedi and Yoda's Rebellion
Selwyn - Kueller (age 45), Sith Lord
Cho Chang - Callista Ming (age 18), member of Yoda's Rebellion
Arnold - Arnie (age unknown), R9-series astromech droid
Phineas Nigellus Black - Thrackan Sal-Solo Kenobi (deceased), former Grand Master and reluctant ally of the Jedi
Romilda Vane - Salla Zend (age 15), fifth year
Gabrielle Delacour - Numa Rar (age 11), bridesmaid
Walden Macnair - Savage Opress (age 44), Sith Lord
Oliver Wood - Tycho Celchu (age 21), professional smashball player and ally of the Jedi
Angelina Johnson - Dia Passik (age 20), ally of the Jedi and Yoda's Rebellion
Alicia Spinnet - Shalla Nelprin (age 19), ally of the Jedi and Yoda's Rebellion
Nagini - Maul (age unknown), snake and Byss clone
Rolanda Hooch - Garven Dreis (age 62), coach
Blaise Zabini - Nikkos Tyris (age 17), seventh year
Vernon Dursley - Owen Lars (age 48), uncle to Luke Skywalker
Petunia Dursley - Beru Lars (age 48), aunt to Luke Skywalker
Dudley "Big D" Dursley - Laze "Fixer" Loneozner Lars (age 17), cousin to Luke Skywalker
Peter "Wormtail" Pettigrew - Nute "Viceroy" Gunray (age 38), Sith servant
Lee "River" Jordan - Wes "Rogue Six" Janson (age 19), leader of Rogue Squadron
Gregorovitch - Rahm Kota (age 73), battlemaster
Viktor Krum - Isolder Chume'da (age 21), professional smashball player
Bellatrix Lestrange - Ysanne Isard (age 46), Sith Lord
Rodolphus Lestrange - Armand Isard (age 43), Sith Lord
Rabastan Lestrange - Kirtan (Loor) Isard (age 41), Sith Lord
Vincent Crabbe - Cornelius Evazan (age 17), seventh year and ally of the Sith
Gregory Goyle - Ponda Baba (age 17), seventh year and ally of the Sith
Pansy Parkinson - Vestara Khai (age 17), seventh year
Seamus Finnagan - Nien Nunb (age 17), seventh year and member of Yoda's Rebellion
Dean Thomas - Lando Calrissian (age 17), fugitive
Poppy Pomfrey - Vokara Che (age 51), nurse
Parvati Patil - Winter Retrac (age 17), seventh year and member of Yoda's Rebellion
Lavender Brown - Bria Tharen (age 17), seventh year and member of Yoda's Rebellion
Padma Patil - Sheltay Retrac (age 17), seventh year and member of Yoda's Rebellion
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 47), bartender
Fang - Drang (age unknown), vornskr
Pigwidgeon - Whistler (age unknown), astromech droid
Regulus Black - Gormel Kenobi (deceased), former Sith Lord and secret ally of the Jedi
Antonin Dolohov - Wilhuff Tarkin (age 46), Sith Lord
Thorfinn Rowle - Sarasu Taalon (age 48), Sith Lord
Septima Vector - Sifo-Dyas (age 38), Master of Precognition
Giant Squid - Colo Claw Fish
Travers - Jerec (age 47), Sith Lord
Mulciber - Grievous (age 37), Sith Lord
Augustus Rookwood - Nom Anor (age 46), Sith Lord
Apolline Delacour - Daeshara'cor Rar (age 48), mother of Alema and Numa Rar
Monsieur Delacour - Master Rar (age 48), father of Alema and Numa Rar
Jimmy Peakes - Valin Horn (age 14), fourth year
Dragomir Gorgovitch - Qu Rahn (age 26), professional smashball player (mention only)
Crookshanks - Anji (age unknown), nexu
Beedle the Bard - Keeper of the Whills (deceased), author
Stan Shunpike - Nick Rostu (age 21), brainwashed Sith servant
Leanne - Riina Kwaad (age 18), ally of the Jedi
Irma Pince - Jocasta Nu (age 85), archivist
Aurora Sinistra - Tionne Solusar (age 47), Master of Astronomy
Babbitty Rabbitty - Morag (age unknown), fictional sorceress
Buckbeak / Witherwings - Boga / Dragonmount (age unknown), varactyl
Ernie McMillan - Corran Horn (age 17), seventh year and member of Yoda's Rebellion
Hannah Abbot - Iella Wessiri (age 17), seventh year and member of Yoda's Rebellion
Justin Finch-Fletchley - Ooryl Qrygg (age 17), seventh year and member of Yoda's Rebellion
Muriel - Tiion Solo (age 107), great-aunt of Han Solo
Alastor Moody - Garm Bel Iblis (age 116), member of the Jedi Order
Susan Bones - Mirax Terrik (age 17), seventh year and member of Yoda's Rebellion
Pomona Sprout - Yaddle (age 74), Master of the Living Force
Barny Weasley - Jarik Solo (age 17), pseudonym for Luke Skywalker
Sybill Trelawney - Roan Shryne (age 36), Master of Divination
James "Prongs" Potter - Anakin "Tan" Skywalker (deceased), member of the Jedi Order
Lily Evans Potter - Padme Amidala Skywalker (deceased), member of the Jedi Order
Firenze - Thrawn (age 26), Master of Farseeing
Bane - Thrass (age 51), Chiss
Ronan - Stent (age 29), Chiss
Magorian - Formbi (age 58), Aristocra of the Chiss Ascendancy
Mafalda Hopkirk - Viqi Shesh (age 43), Imperial bureaucrat
Reginald Cattermole - Jorad Pressor (age 45), maintenance worker
Albert Runcorn - Hethrir (age 50), Imperial Inquisitor
Mary Cattermole - Rosemari Pressor (age 45), wife to Jorad Pressor
Wakanda - Arrianya (age 60), Imperial bureaucrat
Bernie Pillsworth - Bevel Lemelisk (age 50), Imperial bureaucrat (mention only)
Bletchley - Mosh Barris (age 46), Imperial bureaucrat (mention only)
Arkie Alderton - Tol Sivron (deceased), ship manufacturer (mention only)
Alderton - Sivron (age 36), prisoner
Maisie Cattermole - Katarin Pressor (age 8), daughter of Jorad Pressor (mention only)
Ellie Cattermole - Evlyn Pressor (age 6), daughter of Jorad Pressor (mention only)
Alfred Cattermole - Dillian Pressor (age 4), son of Jorad Pressor (mention only)
Griphook - San Hill (age 48), fugitive and former banker
Gornuk - Graemon (age 53), fugitive and former banker
Norberta - Lumpy (age 6), acklay (mention only)
Gamp - Gial Ackbar (deceased), Force user (mention only)
Bowman Wright - Thame Cerulian (deceased), inventor (mention only)
Abbott - Mod Terrik (deceased), ancestor of Mirax Terrik
Michael Corner - Kyp Durron (age 17), seventh year and member of Yoda's Rebellion
Zacharias Smith - Waxarn Kel (age 17), seventh year and coward
Ignotus Peverell - Jagged Fel (deceased), creator of the Cloaking Device and ancestor of Luke Skywalker
Cadmus Peverell - Chak Fel (deceased), creator of the Talisman of Resurrection and ancestor of Cosinga Palpatine
Antioch Peverell - Davin Fel (deceased), creator of the Kaiburr Crystal and ancestor of the House of Skywalker
Dedalus Diggle - Elegos A'Kla (age 45), member of the Jedi Order
Hestia Jones - Shada D'ukal (age 45), member of the Jedi Order
Bathilda Bagshot - Voren Na'al (deceased), author and Noghri
Elphias Doge - Ikrit (age 116), Senator and member of the Jedi Order
Wilhelmina Grubbly-Plank - Shaak Ti (age 53), Master of Animal Frienship
Aberforth Dumbledore - Talon Karrde (age 114), bartender and member of the Jedi Order
Everard - Genarra (deceased), former Grand Master
Dilys Derwent - Cilghal (deceased), former Grand Master
Dexter Fortescue - Ronhar Kim (deceased), former Grand Master
Augusta Longbottom - Syal Antilles (age 73), grandmother to Wedge Antilles
Mundungus Fletcher - Niles Ferrier (age 55), smuggler and member of the Jedi Order
Puddifoot - Hermione Bagwa (age 36), restaurant proprietor
Tobias Snape - Watto Vader (deceased), father of Darth Vader (mention only)
Eileen Prince - Shmi (of) Tatooine (deceased), mother of Darth Vader (mention only)
John Dawlish - Merratt Jaxton (age 48), stormtrooper (mention only)
Terry Boot - Voort "Piggy" saBinring (age 17), seventh year and member of Yoda's Rebellion
Walburga Black - Taselda Kenobi (deceased), mother of Obi-Wan and Gormel Kenobi
Xenophilius Lovegood - Omwati Xux (age 42), father of Qwi Xux
Ollivander - Ko Sai (age 73), wandmaker and prisoner of war
Madam Malkin - Shmi Skywalker (age 41), proprietor of Shmi Skywalker's
Armando Dippet - Fae Coven (deceased), former Grand Master
Scabior - Goran Beviin (age 54), Mandalorian
Dudley - Jade (age 56), Imperial bureaucrat (mention only)
Tom - Wuher (age 51), bartender
Ragnuk - Damask (deceased), creator of the sword of Revan
Andromeda Tonks - Augwynne (Djo) Tahl (age 43), mother of Noorian Tahl and ally of the Jedi
Ted Tonks - Feemor Tahl (age 43), fugitive, father of Noorian Tahl, and ally of the Jedi
Ted Lupin - Feemor Jinn (newborn), son of Qui-Gon Jinn and Noorian Tahl
Marius - Nas Choka (age 55), security guard
Bogrod - Pors Tonith (age 77), banker
Mary MacDonald - Dormé Naberrie (age 37), former classmate of Padmé Amidala (mention only)
2017
Harry Potter - Luke Skywalker (age 37), Stormtrooper Commander
Ron Weasley - Han Solo (age 37), stormtrooper
Hermione Granger Weasley - Leia Organa Solo (age 36), member of the Justice Council
Ginny Weasley Potter - Mara Jade Skywalker (age 36), journalist for the HoloNet and former professional smashball player
Neville Longbottom - Wedge Antilles (age 37), Master of the Living Force and retired stormtrooper (mention only)
Percy Weasley - Jacen Solo (age 40), head of the Ministry of Travel
Draco Malfoy - Galen Marek (age 37), New Republic citizen and pardoned Sith Lord
Kingsley Shacklebolt - Kam Solusar (age 67), Chief of State and former stormtrooper (unmentioned)
Severus Snape - Darth Vader (deceased), former Grand Master and Jedi martyr (mention only)
Rubeus Hagrid - Chewbacca (age 87), Master of Animal Friendship (mention only)
Ted Lupin - Feemor Jinn (age 19), Clawdite and boyfriend of Allana Solo (mention only)
Lily Potter - Padmé Skywalker (age 9), daughter of Luke and Mara Skywalker
James Potter II - Ben Skywalker (age 15), fifth year
Albus "Al" Potter - Yoda "Darth" Skywalker (age 11), first year
Rose Weasley - Jaina Solo (age 11), first year
Hugo Weasley - Anakin Solo (age 9), son of Han and Leia Solo
Scorpius Malfoy - Zekk Marek (age 11), first year
Astoria Greengrass - Juno Eclipse (age 35), wife to Galen Marek
Victoire Weasley - Allana Solo (age 17), seventh year
Locations:
Hogwarts School - Jedi Temple (Room of Requirement - Jedi Praxeum)
The Burrow - Trader's Luck
Ottery St. Catchpole - Coronet, Corellia
Gringotts - Muunilinst
Tonks House - Dathomir
The Hog's Head - The Wild Karrde
Number 12, Grimmauld Place - Stewjon (The Negotiator)
Hogwarts Lake - Dac Ocean
Hogsmeade - CoCo Town
Honeydukes - Dex's Donuts
Forest of Dean - Great Northern Forest, Myrkr
Forbidden Forest - Unknown Regions
Tottenham Court Road - Aldera, Alderaan
Surrey - Tatooine
Number 4, Privet Drive - Lars Homestead
Platform 9 3/4 - Docking Bay 94
King's Cross Station - Mos Eisley Spaceport
Quidditch Pitch - Smashball Field
London - Coruscant
Malfoy Manor - Chateau Marek (Malreaux)
Hogwarts Express - Jedi Cruiser
Shell Cottage - Teyr Cottage (Noga River)
Diagon Alley - Mos Eisley
Godric's Hollow - Mos Espa
Leaky Cauldron - Chalmun's Cantina
Chamber of Secrets - Dark Temple
Species:
Human - Human
Goblin - Muun
Dementor - Tusken
Giant - Yuuzhan Vong
Half-Giant - Wookiee
Ghoul - Ryn
Muggle - Mundane
Wizard - Force wielder
Hippogriff - Varactyl
Thestral - Voxyn
Centaur - Chiss
Veela - Zeltron
Metamorphmagus - Clawdite
Boarhound - Vornskr
Kneazle - Nexu
House-elf - Protocol droid
Squib - Void
Owl - Astromech droid
Ghost - Force spirit
Poltergeist - Force entity
Ukrainian Ironbelly - Krayt dragon
Organization
Gryffindor - Revan
Slytherin - Kun
Ravenclaw - Shan
Hufflepuff - Surik
Death Eater - Sith Order
Order of the Phoenix - Jedi Order
Ministry of Magic - Galactic Republic
Wizengamot - Galactic Senate or Inquisitorius (under Emperor Palpatine)
Dumbledore's Army - Yoda's Rebellion
Snatchers - Mandalorians
Auror Office - Stormtrooper Corps
Lord Voldemort's regime - Galactic Empire
Muggle-Born Registration Committee - Galactic Alliance Guard
Other:
Wizard's Chess - Dejarik
Quidditch - Smashball
Daily Prophet - HoloNet
The Quibbler - The SludgeNews
Auror - Stormtrooper
Horcrux - Clone
Potterwatch - Rogue Squadron
Elder Wand - Kaiburr Crystal
Resurrection Stone - Talisman of Resurrection
Cloak of Invisibility - Cloaking Device
The Tales of Beedle the Bard - The Journal of the Whills
Deluminator - Gimer Stick
Apparition - Force Travel
Disarming Charm - Force Disarm
Killing Curse - Force Kill
Cruciatus Curse - Sith Lightning
Imperius Curse - Affect Mind
Summoning Charm - Force Pull
Stunning Spell - Force Stun
Patronus Charm - Force Aura
Reductor Curse - Force Destruction
Shield Charm - Force Defend
Impediment Charm - Force Slow
Banishing Charm - Force Push
Disillusionment Charm - Alter Image
Alohamora - Ionize
Aguamenti - Force Whirlwind
Lumos - Force Light
Blasting Curse - Force Blast
Gemini Charm - Doppleganger
Incendio - Pyrokinesis
Salazar Slytherin's locket - Exar Kun's amulet
Godric Gryffindor's sword - Revan's sword
Rowena Ravenclaw's diadem - Bastila Shan's suit
Helga Hufflepuff's cup - Meetra Surik's crystal
Polyjuice Potion - Ooglith masquer