Homer - Marc
The forum's loveable idiot.
Marge - Ammi
The voice of reason and the loveliest lady around...
Lisa - GypsyGoth
The show's most moral and brave character 
Bart - NovoBaratheon
I've actually had to forbid him from bringing a slingshot and skateboard to the Caravan of Love.
Maggie - sugartits
What the hell does sugartits sound like? We'll never know.
Santa's Little Helper - _LucasMichael_
Because he always finishes last in every GTA race (and SLH was left homeless by a greyhound-racer before being adopted by the Simpsons). Also most likely to lick peanut butter off Novo's balls.
Patty Bouvier - Chaos
lesbian.
Selma Bouvier - Lee.
Because I think Lee's secretly been married six times and has had ex-husbands try to murder her.
Abe Simpson - Benjamin
Is frequently found in the middle of nowhere around the world and can probably still remember the first world war.
Ned Flanders - joeysteele
For being TiBB's favourite, politest neighbour.
Maude Flanders - Vanessa
A total sweetheart and tbh Vanessa is probably going to get hit by a T Shirt-cannon at a Luke Friend gig one day
Milhouse van Houten - LukeB
idk I just think LukeB is the most likely to be happy about a flood because it means he can wear his flood-pants
Kirk van Houten - Karl/Ramsay
Can I borrow a feeling, Karl?
Seymour Skinner - Jay.
I don't actually have a comparison here but they are both quite major characters aren't they
Agnes Skinner - Scott
Most likely to adopt an adult son and keep him on a tight leash.
Edna Krabappel - Smithy
HA.
Lunchlady Doris - Glenn
Hates her job, spits in our food
Groundskeeper Willie - Josy
Because she's Scottish and has to clean up so much shit on here.
Nelson Muntz - Marsh.
Bully.
Martin Prince - Tom!
For being a little smart-arse and always trying to come up with new games and forum skins.
Sherri & Terri - Amy Jade & Dollface
Which one is which? WHO KNOWS (idk I just had to use as many female characters as possible bc the simpsons, it turns out, is very male-heavy)
Uter - Udanax
Because she begins with U and Bradley strikes me as the type of guy who'd go missing on a school trip and hails from Germany
Elizabeth Hoover - Livia
A forum 'teacher figure' who needs cigarettes, alcohol, and frequent breaks from us all
Dewey Largo - Shaun
For trying valiantly to force good music upon you all only for you to ignore it and keep Ellie Goulding top of the charts
Mayor Joe Quimby - arista
sleazy little bastard
Apu Nahasapeemapetilon - Niall
Shop assistant who would do ANYTHING to have a non-white character 
Moe Szyslak - Conzors
Because he's a flaming 'mo and has a Z in his name
Lenny Leonard - Drew.
Inexplicably beloved by all the women of Springfield, Drew is also memorable for getting Olympic mascot springs caught in his eye.
Carl Carlson - Locke.
Because of the constant "will they - won't they?" story with Drew.
Barney Gumble - Stu
For secretly being John Lennon-levels of genius behind a thick layer of alcoholism.
Hans Moleman - Z
For forever finding the worst and most unfortunate possible situations to get into.
Julius Hibbert - Nathan
For being black and for the chuckle.
Nick Rivera - Mokkajava
It is pretty much common knowledge that Mokkajava will harvest your organs for a quick buck.
Chief Wiggum - MTVN
For total incompetence in enforcing TiBB law
Ralph Wiggum - Mystic Mock
For being a bit special
Krusty the Clown - Kizzy
Begins with a K, ends with a Y, and I am running out of female characters.
Sideshow Mel - waterhog
For being TiBB's resident thespian.
Sideshow Bob - Dezzy
I think he's plotted to have Novo killed about 8 times so it makes sense. Also Dezzy sounds uncannily like Frasier Crane.
Kent Brockman - Jake.
For writing all those Big Brother articles and for leading a hella-glamorous lifestyle.
Rainier Wolfcastle - James
He was elected to lead, not to read.
Charles Montgomery Burns - MB.
to be honest it's just because of the initials
Waylon Smithers - Who is She?
Because he ran around shamelessly after MB's diva demands during I'm a TiBB Member, and for Cal's impressive Malibu Stacey collection.
Crazy Cat Lady - Niamh
Obviously.
Comic Book Guy - the_truth
only more preoccupied with meninism than reviewing movies and TV shows.
Squeaky Voiced Teen - Harry!
no comment
Professor Frink - Sticks
Because he moderates a science forum.
Kang & Kodos - kirklancaster & *Kate*
Because they both begin with K and they've both exiled from the forum before so that logically makes them aliens...
Lurleen Lumpkin - Vicky.
Because I reckon Vicky tried to seduce Marc through the medium of country music.
The Yes Guy - Braden
because he's underused and so so gay
Jasper - LeatherTrumpet
I reckon LT is probably partial to a bit of spanking punishment.
Bleeding Gums Murphy - LemonJam
For his love of music and because he died recently.
Itchy - Chewy
With all those video games he plays he's probably got a great number of violent ways to kills us all with.
Scratchy - SomaStarHusky
meow =3
Bumblebee Man - ElProximo
Los homos! Dios mío!
Reverend Lovejoy - Ryan57
For adopting this GIF approach to most of Man United's games of last (and this tbh) season.
Helen Lovejoy - Kazanne
Won't someone PLEASE think of the children?
Otto - Iceman
Karl was a bad influence at Oxegen wasn't he Eoin
Disco Stu - Loukas
for serving us plenty of bops
Captain McCallister - Raph
I reckon Raph secretly spends months away at sea at a time having an absolute wales of a time with lots of seamen.
Judge Roy Snyder - Brother Leon
There was one time on microphone on FIFA that we could all hear someone banging a gavel and- idfk I'm running out of characters
Jessica Lovejoy - Jessica.
Thank god you've got the same name 
Old Lady - Firewire
Obviously
Old Jewish Man - Calderyon
I just wanted to give this character to somebody so Calderyon, you'll do.
Kearney - Hayden
For being the most mature of the three weave/bullies xxx
Jimbo - Germyle
For being the secret ringleader of them all xxx
Dolph - ~Sam~
Alex Whitney - Natalie.
I am 95% sure that Natalie sounds like Lisa Kudrow.
Mona Simpson - AnnieK
Well who wouldn't want Annie as their mum?
Lindsey Naegle - Cherie
Have you ever woken up to discover Cherie plotting a way to make big $$$ out of your carcass? Well that's not something Ms. Naegle's ever done but the business exec. always shows up with her distinctive voice.
Mr. Bergstrom - mrlecturer
He was only here for a week but he changed our lives forever.
tough ****ing luck if you're forgotten