Disclaimer: I am not George Lucas or J.K. Rowling.
Here are the characters in this story:
Harry Potter - Luke Skywalker (age 16), sixth year
Ron Weasley - Han Solo (age 16), sixth year
Hermione Granger - Leia Organa (age 17), sixth year
Ginny Weasley - Mara (Jade) Solo (age 15), fifth year
Neville Longbottom - Wedge Antilles (age 16), sixth year
Luna Lovegood - Qwi Xux (age 15), fifth year
Fred Weasley - (Ton) Phanan Solo (age 18), entrepreneur and member of the Jedi Order
George Weasley - Face (Loran) Solo (age 18), entrepreneur and member of the Jedi Order
Percy Weasley - Jacen Solo (age 20), aide to Borsk Fey'lya
Bill Weasley - Ganner (Rhysode) Solo (age 26), banker and member of the Jedi Order
Fleur Delacour - Alema Rar (age 19), member of the Jedi Order
Molly Prewett Weasley - Jaina Solo (age 50), member of the Jedi Order
Arthur Weasley - Jonash Solo (age 50), Head of Confiscation Authority and member of the Jedi Order
Albus Dumbledore - Yoda (age 115), Grand Master and leader of the Jedi Order
Amelia Bones - Jysella Terrik (deceased), former Head of the Justice Council
Prime Minister - Wynn Dorvan (age 45), Chief of State of the Galactic Alliance
Ulick Gamp - Ta'laam Ranth (deceased), former Chief of State
Draco Malfoy - Galen Marek (age 16), sixth year and undercover Sith agent
Narcissa Malfoy - Nen Yim Marek (age 42), matriarch of the House of Marek and ally of the Sith
Nymphadora Tonks - Noorian Tahl (age 22), stormtrooper and member of the Jedi Order
Kingsley Shacklebolt - Kam Solusar (age 46), stormtrooper, member of the Jedi Order, and head of Chief Dorvan's security
Herbert Chorley - Desha Lor (age 39), assistant to Chief Dorvan
Rufus Scrimgeour - Borsk Fey'lya (age 46), Chief of State
Minerva McGonagall - Mon Mothma (age 75), Master of Metamorphosis and member of the Jedi Order
Filius Flitwick - Sio Bibble (age 75), Master of the Force
Severus "Half-Blood Prince" Snape - Darth "Ghost of Tatooine" Vader (age 35), Master of Defense Against the Dark Side of the Force and undercover Jedi agent in the Sith Order
Emmeline Vance - Tyria Sarkin (deceased), member of the Jedi Order
Lord Voldemort / Tom Riddle - Lord Sidious / Cosinga Palpatine (age 69), Dark Lord of the Sith
Yaxley - Ivaar Workan (age 37), Sith Lord
Dolores Umbridge - Natasi Daala (age 65), Chief of Staff
Sirius Black - Obi-Wan Kenobi (deceased), member of the Jedi Order (mention only)
Remus Lupin - Qui-Gon Jinn (age 36), member of the Jedi Order and undercover Jedi agent among the Mandalorians
Dobby - I-5YQ "I-Five" (age 31), ally of Yoda's Rebellion
Amycus Carrow - Tsavong Lah (age 46), Sith Lord
Alecto Carrow - Lumiya Lah (age 46), Sith Lord
Rubeus Hagrid - Chewbacca (age 66), Master of Animal Friendship and member of the Jedi Order
Fenrir Greyback - Boba Fett (age 58), werewolf and head of the Mandalorians
Grawp - Scut (age 61), half-brother of Chewbacca
Argus Filch - Jurokk (age 59), caretaker
Horace Slughorn - Jorj Car'das (age 86), Master of Potions and head of the Smugglers' Alliance
Dirk Cresswell - Nawara Ven (age 36), member of the InterGalactic Banking Clan
Barnabas Cuffe - Perre Needmo (age 46), editor of the HoloNet
Ambrosius Flume - Dexter Jettster (age 69), proprietor of Dex's Donuts
Colin Creevey - Dak Ralter (age 15), fifth year
Dennis Creevey - Cole (Fardreamer) Ralter (age 13), third year
Hedwig - R2-D2 (age 16), astromech owl
Kreacher - PROXY (age 101), servant to Luke Skywalker
Gwenog Jones - Zindra Daine (age 36), professional smashball player
Verity - Jesmin Ackbar (age 18), employee at Wraith Squadron
Katie Bell - Tahiri Veila (age 17), seventh year
Borgin - Seb Arkos (age 49), black market dealer
Cho Chang - Callista Ming (age 17), seventh year
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 14), fourth year
Cormac McLaggen - Fenn Shysa (age 17), seventh year
Marcus Belby - Raynar Thul (age 17), seventh year
Damocles - Tyko Thul (age 47), potioneer (mention only)
Mr. Belby - Bornan Thul (age 45), father of Raynar Thul (mention only)
Tiberius - Spar Shysa (age 39), uncle to Fenn Shysa (mention only)
Bertie Higgs - Behn-kihl-nahm (age 39), friend of Spar Shysa and Borsk Fey'lya
Rolanda Hooch - Garven Dreis (age 62), coach
Blaise Zabini - Nikkos Tyris (age 16), sixth year
Vernon Dursley - Owen Lars (age 47), uncle to Luke Skywalker
Petunia Dursley - Beru Lars (age 47), aunt to Luke Skywalker
Dudley Dursley - Laze Loneozner Lars (age 16), cousin to Luke Skywalker
Peter "Wormtail" Pettigrew - Nute "Viceroy" Gunray (age 37), Sith servant
Proudfoot - Gial Ackbar (age 34), stormtrooper
Savage - Nek Bwua'tu (age 34), stormtrooper
Libatius Borage - Sorzus Syn (deceased), author (mention only)
Hector Dagworth-Granger - Jeren Nolus-Organa (deceased), potioneer (mention only)
Abraxas Malfoy - Kento Marek (deceased), grandfather of Galen Marek (mention only)
Vincent Crabbe - Cornelius Evazon (age 16), sixth year
Gregory Goyle - Ponda Baba (age 16), sixth year
Pansy Parkinson - Vestara Khai (age 16), sixth year
Seamus Finnagan - Nien Nunb (age 16), sixth year
Dean Thomas - Lando Calrissian (age 16), sixth year
Poppy Pomfrey - Vokara Che (age 50), nurse
Parvati Patil - Winter Retrac (age 16), sixth year
Lavender Brown - Bria Tharen (age 16), sixth year
Padma Patil - Sheltay Retrac (age 16), sixth 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 46), bartender and brainwashed ally of the Sith
Fang - Drang (age unknown), vornskr
Pigwidgeon - Whistler (age unknown), astromech owl
Regulus Black - Gormel Kenobi (deceased), former Sith Lord (mention only)
Bob Ogden - Gilad Pellaeon (deceased), Republic agent
Septima Vector - Sifo-Dyas (age 37), Master of Precognition
Giant Squid - Colo Claw Fish
Marvolo Gaunt - Darth Bane (deceased), grandfather of Lord Sidious
Morfin Gaunt - Darth Tenebrous (deceased), uncle of Lord Sidious
Merope Gaunt - Darth Zannah (deceased), mother of Lord Sidious
Cornelius Fudge - Cal Omas (age 50), advisor to Borsk Fey'lya
Demelza Robins - Kirana Ti (age 16), sixth year
Jimmy Peakes - Valin Horn (age 13), third year
Ritchie Coote - Jaden Korr (age 13), third year
Crookshanks - Anji (age unknown), nexu
Hermes - SD-XX "Double Ex" (age 18), astromech droid
Stan Shunpike - Nick Rostu (age 20), prisoner in Kessel (mention only)
Lucius Malfoy - Dooku Marek (age 44), prisoner in Kessel (mention only)
Leanne - Riina Kwaad (age 17), seventh year
Irma Pince - Jocasta Nu (age 84), archivist
Aurora Sinistra - Tionne Solusar (age 46), Master of Astronomy
Caractacus Burke - Zekka Thyne (deceased), black market dealer
Buckbeak / Witherwings - Boga / Dragonmount (age unknown), varactyl
Ernie McMillan - Corran Horn (age 16), sixth year
Hannah Abbot - Iella Wessiri (age 16), sixth year
Justin Finch-Fletchley - Ooryl Qrygg (age 16), sixth year
Arabella Figg - Ferus Olin (age 44), member of the Jedi Order
Alastor Moody - Garm Bel Iblis (age 115), member of the Jedi Order
Susan Bones - Mirax Terrik (age 16), sixth year
Pomona Sprout - Yaddle (age 73), Master of the Living Force
Mafalda Goshawk - Mander Zuma (age 54), author (mention only)
Sybill Trelawney - Roan Shryne (age 35), Master of Farseeing
James Potter - Anakin Skywalker (deceased), member of the Jedi Order (mention only)
Lily Evans Potter - Padme Amidala Skywalker (deceased), member of the Jedi Order (mention only)
Firenze - Thrawn (age 25), Master of Farseeing
Bane - Thrass (age 50), Chiss
Ronan - Stent (age 28), Chiss
Magorian - Formbi (age 57), Aristocra of the Chiss Ascendancy
Mrs. Cole - Lady Cognus (deceased), caregiver of Cosinga Palpatine
Muriel - Tiion Solo (age 106), great-aunt of Han Solo (mention only)
Vaisey - Ahri Raas (age 15), fifth year
Urquhart - Welk (age 17), seventh year
Harper - Kell Douro (age 15), fifth year
Eldred Worple - Wolam Tser (age 56), holodocumentarian
Sanguini - Dannik Jerriko (age 1,010), Anzati
Gawain Robards - Traest Kre'fey (age 48), Stormtrooper Commander (mention only)
Fergus - Aril Nunb (age 21), sister to Nien Nunb (mention only)
Galatea Merrythought - Mace Windu (deceased), Master of Defense Against the Dark Side of the Force (mention only)
Lestrange - Isard (deceased), former Sith Lord and father of Armand Isard
Avery - Doriana (deceased), former Sith Lord and father of Kinman Doriana
Golpalott - Skere Kaan (deceased), potioneer (mention only)
Wilkie Twycross - Streen (age 55), instructor
Cadwallader - Aves (age 15), fifth year
Hokey - Q9-X2 (deceased), servant to Clan Mastigophorous
Hepzibah Smith - Marcha of Clan Mastigophorous (deceased), duchess and descendant of Meetra Surik
Rosier - Kycina Maul (deceased), former Sith Lord and mother of Darth Maul
Mulciber - Grievous (deceased), former Sith Lord and father of Grievous
Michael Corner - Kyp Durron (age 16), sixth year
Zacharias Smith - Waxarn Kel (age 16), sixth year
Octavius Pepper - Seti Ashgad (age 44), missing person
Montgomery - Pressor (age 5), werewolf victim
Bertram Aubrey - Tru Veld (age 36), former classmate of Anakin Skywalker and Obi-Wan Kenobi
Thorfinn Rowle - Sarasu Taalon (age 47), Sith Lord
Jack Sloper - Kajin Savaros (age 17), seventh year
Armando Dippet - Fae Coven (deceased), former Grand Master
Gibbon - Rukh (age 34), Sith Lord
Wilhelmina Grubbly-Plank - Shaak Ti (age 52), Master of Animal Frienship
Aberforth Dumbledore - Talon Karrde (age 113), bartender
Everard - Genarra (deceased), former Grand Master
Dilys Derwent - Cilghal (deceased), former Grand Master
Dexter Fortescue - Ronhar Kim (deceased), former Grand Master
Bellatrix Lestrange - Ysanne Isard (age 45), Sith Lord
Augusta Longbottom - Syal Antilles (age 72), grandmother to Wedge Antilles (mention only)
Mundungus Fletcher - Niles Ferrier (age 54), smuggler
Puddifoot - Hermione Bagwa (age 35), 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 47), stormtrooper
Terry Boot - Voort "Piggy" saBinring (age 16), sixth year
Fawkes - Vergere (immortal), Fosh
Olympe Maxime - Mallatobuck (age 66), headmistress of Carida Academy
Rita Skeeter - Javis Tyrr (age 45), journalist for the HoloNet
Ollivander - Ko Sai (age 72), wandmaker and prisoner of war
Madam Malkin - Shmi Skywalker (age 40), proprietor of Shmi Skywalker's
Aragog - Gorog (deceased), Killik leader
Myrtle Warren - Lorana Jinzler (deceased), spirit of the second floor girls' refresher
Igor Karkaroff - Brakiss (deceased), former headmaster of the Sith Academy and former Sith Lord (mention only)
Tom - Wuher (age 50), bartender
Ernie Prang - Qorl (age 80), pilot of the Far Ranger
Murcus - Pwoe (age 44), representative of Dac
Locations:
Hogwarts School - Jedi Temple (Room of Requirement - Jedi Praxeum)
The Burrow - Trader's Luck
Ottery St. Catchpole - Coronet, Corellia
Knockturn Alley - Nar Shaddaa (Borgin and Burkes - Arkos and Thyne's)
Weasley Wizard Wheezes - Wraith Squadron
The Hog's Head - The Wild Karrde
The Three Broomsticks - Dex's Diner
Hogwarts Lake - Dac Ocean
Hogsmeade - CoCo Town
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 - Smashball Field
London - Coruscant
Hogsmeade Station - Docking Bay 327
Hogwarts Express - Jedi Cruiser
Horcrux Cave - Mount Tantiss
Little Hangleton - Korriban (Gaunt Shack - Byss)
Wool's Orphanage - Theed, Naboo
Spinner's End - Mos Espa
Species:
Human - Human
Goblin - Muun
Dementor - Tusken
Giant - Yuuzhan Vong
Half-Giant - Wookiee
Pygmy Puff - R9-series astromech droid
Muggle - Mundane
Wizard - Force wielder
Hippogriff - Varactyl
Thestral - Voxyn
Centaur - Chiss
Phoenix - Fosh
Veela - Zeltron
Vampire - Anzati
Metamorphmagus - Clawdite
Boarhound - Vornskr
Kneazle - Nexu
House-elf - Protocol droid
Squib - Void
Owl - Astromech droid
Ghost - Force spirit
Poltergeist - Force entity
Acromantula - Killik
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 - Justice Council
Dumbledore's Army - Yoda's Rebellion
Fenrir Greyback's gang - Mandalorians
Auror Office - Stormtrooper Corps
Slug Club - Smugglers' Alliance
Holyhead Harpies - Twin Suns Squadron (mention only)
Other:
Wizard's Chess - Dejarik
Quidditch - Smashball
Daily Prophet - HoloNet
The Quibbler - The SludgeNews
Auror - Stormtrooper
Horcrux - Clone
Bludgers - Dovin basals
Quaffle - Grav-ball
Golden Snitch - Golden Globe
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
Orange medal - Miriskin
Muffliato - Disruption Bubble Generator
Sectumsempra- Darkshear
Polyjuice Potion - Ooglith masquer