Taylor Daniel Lautner (pronounced /ˈlaʊtnər/, LOWT-ner; born February 11, 1992) is an American actor, voice actor, model, and martial artist. As a child, Lautner took up martial arts at Fabiano's Karate in Holland, Michigan and was ranked number one in his category by the American Sports Karate Association. Lautner soon thereafter began his acting career, appearing in bit roles in comedy series such as The Bernie Mac Show (2003) and My Wife and Kids (2004), before having voice roles in television series like What's New, Scooby-Doo? (2005) and Danny Phantom (2005). In 2005, he appeared in the film Cheaper by the Dozen 2 and starred in The Adventures of Sharkboy and Lavagirl in 3-D.

Lautner is best known for playing Jacob Black in The Twilight Saga film series based on the novels of the same name by Stephenie Meyer. He also starred in the action film, Abduction, which became a sleeper hit.

The late 2000s saw Lautner become a teen idol and rise as a sex symbol, after extensively changing his physique to keep the role of Jacob Black in further Twilight installments, and thereafter generating media attention for his looks. In 2010, he was ranked second on Glamour's "The 50 Sexiest Men of 2010" list, and fourth on People's "Most Amazing Bodies" list. Also in the same year, Lautner was named the highest-paid teenage actor in Hollywood.

Kristen Jaymes Stewart (born April 9, 1990) is an American actress. She is best known for playing Bella Swan in The Twilight Saga. She has starred in other films, including Panic Room (2002), Zathura (2005), In the Land of Women (2007), The Messengers (2007), Adventureland (2009), The Runaways (2010), and Snow White and the Huntsman. She will star in upcoming films in 2012: On the Road and The Twilight Saga: Breaking Dawn – Part 2.

Stewart was born and raised in Los Angeles, California. Her father, John Stewart, is a stage manager and television producer who has worked for Fox. Her mother, Jules Mann-Stewart, is a script supervisor originally from Maroochydore, Queensland, Australia. She has an older brother, Cameron Stewart, and an adopted brother, Taylor. Stewart attended school until the seventh grade and then continued her education by correspondence. She has since completed high school.

Her whole family all worked behind the camera and Stewart thought she would become a writer/director, but never considered being an actor. "I never wanted to be the center of attention – I wasn't that 'I want to be famous, I want to be an actor' kid. I never sought out acting, but I always practiced my autograph because I love pens. I'd write my name on everything." Stewart's acting career began at the age of eight, after an agent saw her perform in her elementary school's Christmas play. After a year of auditioning, Stewart's first role was a small nonspeaking part in the Disney Channel original film The Thirteenth Year. Then, she had another part in the film The Flintstones in Viva Rock Vegas as the "ring toss girl". She subsequently appeared in the independent film The Safety of Objects, in which she played the tomboy daughter of a troubled single mother (Patricia Clarkson). Stewart also played a tomboy in the film Panic Room, playing the diabetic daughter of a divorced mother (Jodie Foster). She was nominated for a Young Artist Award for her performance.

Ryan John Seacrest (born December 24, 1974) is an American radio personality, television host and producer. He is known internationally as host of the top-rated primetime talent showcase American Idol. He has been nominated for an Emmy award in the "Outstanding Host for a Reality or Reality-Competition Program" category for his work on American Idol. He won a Daytime Emmy Award for co-hosting the 2005 Walt Disney World Christmas Day Parade with Regis Philbin and Kelly Ripa. As a television producer, Seacrest has won an Emmy for the ABC show Jamie Oliver’s Food Revolution. On radio, Seacrest is host of On Air with Ryan Seacrest, his market-topping #1 nationally syndicated LA morning drive-time radio show for Clear Channel’s 102.7 KIIS-FM. , as well as a nationally-syndicated Top 40 radio show. Seacrest hosted the 59th Primetime Emmy Awards on September 16, 2007. Seacrest has extensive deals with brand heavyweights Proctor & Gamble, Coca-Cola and Microsoft, and has a strategic marketing and technology alliance with Eventful, Inc.

Lily Jane Collins (born 18 March 1989) is a British and American actress, model, and television personality.

Collins was born in Guildford, Surrey, England, and is the daughter of English musician Phil Collins and his second wife Jill Tavelman. Her mother is American, and is the president of the Beverly Hills' Women's Club. Collins is the half-sister of actress Joely Collins and musician Simon Collins (from her father's first marriage), and also has two half-brothers from her father's third marriage, Nicholas and Matthew Collins. Her maternal grandfather was a Canadian Jewish immigrant who owned a famous clothing store in Los Angeles.

Collins moved from England to Los Angeles when she was five years old, and her parents divorced. She graduated from Harvard-Westlake School and is currently a student at the University of Southern California with a major in broadcast journalism.

Collins started acting at the age of two in the BBC series Growing Pains.

As a teenager, Collins wrote a column (titled NY Confidential) for the British magazine Elle Girl. She has also written for Seventeen,Teen Vogue, and the Los Angeles Times magazines.

Robert Thomas Pattinson (born 13 May 1986) is an English actor, model, musician, and producer. Born and raised in London, Pattinson started out his career by playing the role of Cedric Diggory in Harry Potter and the Goblet of Fire. Later, he landed the leading role of Edward Cullen in the film adaptations of the Twilight novels by Stephenie Meyer, and came to worldwide fame, thus establishing himself among the highest paid and most bankable actors in Hollywood. In 2010, Pattinson was named one of TIME magazine's 100 Most Influential People in The World, and also in the same year Forbes ranked him as one of the most powerful celebrities in the world in the Forbes Celebrity 100.

Pattinson was born in London, England. His mother, Clare, worked for a modelling agency, and his father, Richard, imported vintage cars from the U.S. Pattinson has two elder sisters, singer Lizzy Pattinson, and Victoria Pattinson. Growing up in the Barnes suburb of London, he attended Tower House School until he was 12, and then The Harrodian School. He became involved in amateur theatre at the Barnes Theatre Company. He auditioned and was cast in a small role in Guys and Dolls. He next auditioned for Thornton Wilder's Our Town and was cast as George Gibbs. He also played in Anything Goes and Macbeth. He caught the attention of an acting agent in a production of Tess of the d'Urbervilles and began looking for professional roles.