Massie Block is a true alpha of Westchester, brunette hair and fiery amber eyes, who is rich and gets basically everything she wants. She constantly makes an IN-OUT list on her blog called ¨Current State of the Union¨, based on events she experiences. Massie has a horse named Brownie and a female pug named Bean, who she adores and likes to dress up. Nevertheless, in the New York Times Book Review, Laura Bourdon wrote, "Puh-lease, as Massie Block would say in reference to these insults directed at her so-called extravagant lifestyle."All the same, she is the official ruler of Octavian Country Day until Claire, a new girl from Orlando, comes and messes it all up. They hate one another in the beginning but gradually start to like each other. Through tough times Massie and Claire start to rely on each other. In the first book Massie falls for Chris Abeley but discovers that he has a disgustingly beautiful girlfriend named Fawn. In the second book Massie and Claire throw a Halloween party and they both fall for a Briarwood boy named Cam Fisher. In the third book Massie finds out that Alicia started her own Clique and discovers Cam likes Claire, not her. While dealing with Alicia, Massie starts liking Derrick Harrington, or Derrington, as the girls secretly call him. Her life is nowhere near perfect, with Nina the Spanish boy charmer, getting expelled from OCD in Lake Placid, losing the lead role in Dial L for Loser to Claire, searching for the key to a secret room, and not finding it first, getting Chris to fall for Skye Hamilton even though they were falling for each other, and designing the overflow trailers. Although Massie is known as the alpha, she is the one whom her friends have turned against the most often of the five girls. It has been stated throughout the series that Alicia Rivera is more beautiful then Massie, but Massie is known as being the most under control, over-thinking, and overall coolest member of the Pretty Committee, making her the true alpha.
Claire Stacey Lyons is the “New Girl” of the Pretty Committee in the series. At the beginning of the series, Claire was teased constantly by the Pretty Committee, but survived months and is now a new member. Claire moved from Orlando, Florida. In "Invasion Of The Boy Snatchers," it was announced that she and her family would be moving to Chicago, but they end up staying in the guest house. Now she lives in the Block’s guesthouse and over the course of the series, has become very close friends with Massie. In the beginning of the series she is somewhat innocent and naïve, but is forced to mature as the cruel treatment from the Pretty Committee causes her to become more aware of what people think of her. She is really obsessed with her boyfriend, Cam Fisher. In Dial L For Loser, Claire becomes a celebrity and must mature even more due to hateful treatment from Massie, Alicia, and her so-called celebrity friends at the end of the book. In the 9th book Claire becomes jealous of her ex boyfriend's relationship with Olivia. Claire's parents are Jay and Judi Lyons, and her little brother is Todd. Claire has said in the past that she was ashamed of her parents for being slightly overweight and not dressing like the rest of the parents in Westchester, but she enjoys the fact that they don't make fun of her for eating junk food. In It's Not Easy Being Mean Claire must choose between pursuing an acting career or staying in Westchester, she then realizes how much Layne Abeley's friendship, Cam's admiration, and the Pretty Committee's membership means to her, so she decides to stay.
Claire's first friend is Layne Abeley, who becomes her best and only friend at school. As the year progresses, Claire forms friendships with Massie, Alicia and the rest of the PC. Claire's appearance is described as pretty but in a plain way. Claire has white blonde hair, blue eyes, and a healthy in-shape skinny figure.
Dylan Marvil is the Pretty Committee's bridge to Hollywood and celebrities in the first book. Dylan's mother, Merri-Lee Marvil, hosts the very popular talk show, The Daily Grind. Dylan is a very stubborn girl, but is also very self-conscious. She continuously worries about her weight, even though she is described as being a healthy weight. Along with her talk of her weight, Dylan is also considered the 'pig' or the 'comic relief' of the books. She is the only member of the Pretty Committee who is not afraid to eat in front of people, mainly boys, and she loves to belch. Dylan is described as having curly, fiery red hair, though in Bratfest at Tiffany's, she returns with stick-straight hair. Unfortunately, in the same novel, she is outside in rain and her hair goes back to being curly. It is unknown if she will re-straighten her hair. In the book "The Pretty Committee Strikes Back" she later develops a crush on Chris Plovert, who is not sure if he has any feeling for her at all. In the "Clique Summer Collection: Dylan", she gets long hair like Svetlana Slootskyia (to impress a boy) who teaches her tennis.
Alicia Rivera (also referred to as Leesh) is the "Beauty" of The Pretty Committee and also Massie's second-in-command or beta. In the first three books, she expresses the desire to start her own clique with Olivia Ryan, but when she does so in the third book, Revenge of the Wannabes, Massie goes after her and quickly unravels Alicia’s clique, humiliating Alicia in the process. After “Revenge Of The Wannabes” Alicia seems much more content with her role as the “beta”. The Briarwood Boys consider her to be extremely hot, and she has a reputation as being the prettiest girl at OCD, which slightly irritates Massie. She and Olivia are also called the Twenty by the OCD boys because they are both rated 10s. She is described of impossibly glossy dark (black) hair and big brown eyes. She also is very tan with full cherry red lips and constantly saying things like "given!" and "point". She has the biggest boobs (C cup at 12 years old) in the Pretty Committee and is always trying to cover them up because she is self-conscious about them. She is a sexy Spanish beauty and every boy in Briarwood likes her. She also has a crush on Josh Hotz and secretly develops a relationship with him in the 9th book. She is also known to be a tad richer than Massie. Alicia also has a big obsession with Ralph Lauren.
Kristen Michelle Gregory is the “Athlete” and the “Genius” of the Pretty Committee. In books 1-3, she is obsessed with crossword puzzles, but switches to word jumbles in book 4. While she is part of the Pretty Committee, she hardly has any main plotlines revolving around her. She is very smart and attends Octavian County Day school on a scholarship. It is revealed about halfway through the first book that Kristen is poor, but she is really middle class. She stands as the reason to the Pretty Committee, always at hand with a witticism or moral. While she has a tendency to switch to the winning side during fights, she proves to be a very loyal friend to the entire Pretty Committee. Kristen is also described as being blond and her chest is flat and muscular. She loves to play soccer and is mistaken for a boy in the fourth book when her mom cuts all her hair off. It is revealed in the Kristen summer series book that she is the alpha of the "Witty Committee" which includes LBRs like Layne Abeley. She has a crush on Dune, a cute surfer.