In the first series, a segment entitled "Craig David's Life Story" is featured, showing events such as David visiting the doctor to be fitted with a Urostomy bag (which he often fails to wear at night and wets the bed), and attempting to break the American market but catches a flight to Mallorca by accident.
Leigh Francis stated in an interview with Metro that the character was based on Billy Casper from Kes, rather than the singer Craig David.
She speaks with a heavy northern accent, which is apparent when she says the word "fuck" like "fook", and wears a leopard-print top, revealing a disturbingly hairy chest.
In the first series, she features in a segment in which she promotes her new book, which discusses the split of the Spice Girls and her love for her stuffed tiger.
The segment shows her living with singer and actress Patsy Kensit, whom she is always trying to seduce and with whom she eventually has a drunken one night stand in the final episode.
On the music video for Avid Merrion's cover for I Got You Babe (which also starred Patsy Kensit), Mel's father was revealed to be Jim Bowen.
In series one, his segment was titled "The Jacksons", which featured Michael showing the viewer around his family home, and having an ongoing feud with The Osbournes.
The segment followed his nine weeks of being in jail (the real Michael Jackson was due to face trial at the time) with his comedy hero Ronnay Barkay.
Throughout the first two series, Blaine was featured in a self-titled segment, which saw himself perform tricks against unsuspecting female members of the public.
In one of his magic tricks (referencing his "Frozen in Time" stunt), he masturbates in front of the audience while being encased in ice.
She is either always sweeping the floor with a brush, or searching for food, a reference to her real life bulimia, though is obsessed with her dogs and often is portrayed as eating their bowel movements.
Throughout series one, she regularly appeared in "The Week In Bits" segment, often meeting other celebrities or talking about her private life.
In series two, she has her own segment, entitled "The Kelly Osbourne Show", in which she goes shopping, gets a haircut, slags off other celebrities, or does an advice call-in.
In series three, his face and hair is drastically increased and he gains a Yorkshire accent in his own show "Jack Off" in which he interviews several people.
Avid lives in a flat in London, with his dead mother, whom he keeps in the cupboard, and Craig Phillips, winner of the first series of Big Brother UK, whom he keeps chained up in the toilet.
With his slurred and broken English, a ginger mullet, eccentricity, bisexuality, peculiar sexual fetishes, poor social skills and obsession with showbiz figures, he became known as one of the scariest celebrity stalkers.
He spends most of his time harassing celebrities at functions such as book signings or movie premières, highlights of which are shown throughout the first two series.
By the third series of this show, his newly elevated status in pop culture allowed him to talk one-on-one with celebrities, rather than stalking them.
in the USA, Avid has given up his job as a chat show host, and now owns a hotel in Los Angeles, where many celebrities come to stay.
He was also made gay in series three, leading to a sketch where Avid would say television has changed into a 'blank', which would immediately cut to an impersonation of Blankety Blank.
Kat Slater is portrayed as having the arms of a pig, which she regularly refers to as her "big flappy bingo wings".
Invariably, a real life male cast member will tell Kat how much he loves her bingo wings, more than Shane ever could.
Throughout the first series, a sketch where singer Enrique Iglesias's mole would show short segments of what the celebrity characters had been doing during the week was broadcast.
in the USA, it is revealed that Avid did not seem to be as romantic as before and she seems to take a liking to the Mexican half-wolf half-man head cleaner Ralph.
Ironically, she refers to sex as 'Nookie' and often makes bets (of about 25 to 35 pence) with people on who'll win Big Brother or if someone will have Nookie.
Appearing in series 2, Ricky is portrayed as having a rough Cockney accent and always wearing a pair of boxing gloves.
It is revealed it is often him getting in the way of people, as he pretends to act as if somebody completely uninterested in him has recognised him, in which he proceeds to dance like the character he plays in The Office David Brent.
He often refers to the time he pleasured two men in a public toilet, saying he 'skied really violently with them' (based on the real-life situation when he was caught doing the same act).
Portrayed as having hairy arms, jiggly manboobs and an unusually big chin, he says to have invented things such as the Grammys and even real people like Michael Jackson, Uri Geller and Leona Lewis.
The sketches all revolve around Ant being sodomised by a celebrity guest using strange items (such as a satellite dish and a snooker cue), whilst Dec goes backstage to 'have a stotty cake'.