Trivia: Katherine Heigl was an experienced movie actress by the time she was cast as one of the out-of-this-world teenagers on WB's Roswell in 1999. Born and raised in Connecticut, Heigl began modeling and appearing in TV ads as a child. After making her film debut in That Night (1992), Heigl balanced movie work with high school, playing a small role in Steven Soderbergh's Depression-era drama King of the Hill (1993), starring as Gérard Depardieu's difficult daughter in My Father the Hero (1994), and Steven Seagal's niece in the action sequel Under Siege 2: Dark Territory (1995). Heigl headed to Los Angeles after high school to make acting her full-time job. Following a leading role in Wish Upon a Star (1996) and a small part as a Rita Hayworth stand-in in Stand-Ins (1997), Heigl made a foray into horror with Bug Buster (1998) and Bride of Chucky (1998).Branching out into television, Heigl co-starred with Peter Fonda in a Shakespeare-via-Civil War reworking of The Tempest (1998). Benefiting from the late-'90s wave of youth-driven TV shows, Heigl stayed with television and attracted an avid following as alien beauty Isabel on the cult hit Roswell. The doctors-in-love dramedy Grey's Anatomy, however, catapulted its entire cast to full-fledged stardom when it premiered in 2005; Heigl's role as the tough-cookie intern Izzie endeared her to countless fans of the show. The actress savvily parlayed this success into a movie career, although not by going the traditional three-hanky drama route. After winningly playing a Special Olympics counselor in 2005's broad comedy The Ringer, Heigl seemed the perfect choice for writer-director Judd Apatow's follow-up to The 40-Year-Old Virgin, 2007's Knocked Up. The improv-heavy tale of an unlikely one-night-stand - and its consequences - relied upon Heigl's charm and crack comedic timing to balance out the dude-centric humor supplied by co-stars Seth Rogen and Paul Rudd. The combination worked, as audiences made Knocked Up a bona-fide summer hit.In the coming years, Heigl woudl find herself becomming the go-to actress for successful, light, romantic comedies, like 27 Dresses (2008), The Ugly Truth (2009), Life as We Know It (2010), New Year's Eve (2011), and One for the Money (2012).

Trivia: Jason Behr started working steadily on television just as he entered his twenties. He started with a number of guest appearances on programs as diverse as Pacific Blue, Step by Step, and Buffy the Vampire Slayer. He landed recurring roles on Push and the teen soap opera Dawson's Creek. He parlayed the success into a starring role as Max Evans on the teen sci-fi series Roswell. His film career includes appearances in films as diverse as The Shipping News and the horror film The Grudge. He also appeared in the New Zealand horror film The Tattooist. Behr returned to TV with a recurring role on A&E's Breakout Kings in 2012.

Trivia: Began acting as a toddler, when her parents took her to auditions in an attempt to get her to overcome her shyness. Put her acting career on hold to attend high school. While in high school, she was a cheerleader and worked as a hostess at a restaurant. The daughter of an Israeli mother, she has visited Israel often and feels very connected to her family there. Appeared in the 1994 pilot episode of NBC's ER as a patient, and played an intern for the final season of the long-running medical drama. Breakthrough role came when she landed the part of a high school student who befriends aliens on the WB sci-fi drama Roswell. Causes that are important to her include getting arts programs for children, promoting healthy lifestyles and stopping animal cruelty.

Trivia: Bearing an eerie resemblance to a slightly more stalwart David Duchovney, former model-turned-actor Brendan Fehr has etched out a lucrative film career as a teenage tough guy in such popular high school horror-fests as Disturbing Behavior (1998), Final Destination (2000), and The Forsaken (2001). Also appearing on such small-screen efforts as Millennium and Roswell, Fehr has proven himself able to successfully alternate between television and film while doing his best to avoid being pigeonholed as a teen horror brat packer for the new millennium. Born in New Westminster, British Columbia, Fehr showed an interest in sports early on, and nearly went into a career as an accountant due to his love of mathematics. Relocating to Winnipeg, Manitoba, in 1990, Fehr began to consider a career as a teacher while simultaneously finding work as a model. After approaching an agent while visiting his family in Vancouver in 1997, the handsome young model was convinced that his looks would shine through on camera and soon made his film debut on UPN's Breaker High. Moving on to numerous roles for the Fox Family network and appearing on such television hits as Millennium found Fehr an increasing sought-after up and comer, and it was only a matter of time before he made his film debut in the sci-fi horror hit Disturbing Behavior. Numerous supporting roles followed, and in addition to his work in teen fright flicks, Fehr also appeared in such seldom-seen films as Kill Me Later (2001). Fehr was increasingly busy in the early years of the new millennium, with such films as Long Shot and Paper, Scissors, Stone hinting at a bright future for the developing actor.

Trivia: If you're a fan of movies, you've no doubt seen William Sadler's face countless times. With a versatile career that has spanned from long-haired, small-town rock star to banjo-plucking entertainer to Shakespearean actor to his role as Death in Bill and Ted's Bogus Journey (1991), William Sadler attacks all roles with equal gusto with his characters never ceasing to leave an impression on viewers, even if they can't recall the name of "that guy in that movie."Born in April of 1950 in Buffalo, NY, Sadler's imagination was fueled from a young age on his family's sprawling farm where he would pass the time with friends reenacting scenes from their favorite television and radio programs. Around the age of eight, Sadler's father's interest in music sparked a passion in the young boy as well with his father's gift of a ukulele. The two frequently performed at family functions together: Sadler Sr. on the guitar and Jr. on the uke. Later taking interest in a number of stringed instruments, after following in his father's footsteps and taking up the guitar, Sadler quickly learned that the mystique of the musician's life was difficult to resist. Forming a cover band with his Orchard Park High schoolmates, he began to gain popularity and a surprising amount of attention from the opposite sex. Armed with a banjo and a fistful of jokes, Sadler soon took on the persona of "Banjo Bill Sadler" for the school's annual variety show, and the result was an instant success. The students and teachers loved the performance, and English teacher Dan Larkin soon persuaded Sadler to audition for a role in Harvey, the senior play. Winning the lead and igniting a fire within the young performer, Sadler would soon follow his dreams and enroll in the drama program at State University College in Geneseo, NY. After spending two intense years in Cornell University's Fine Arts following his tenure at State University College, Sadler was finally prepared to be humbled in the grueling trials of the aspiring actor.Sadler took his first post-school role in Florida and soon relocated to Boston, moving in with his sister while scrubbing the floors of a lobster boat by day and cutting his acting chops at night. Slowly working up the nerve to take a shot at the big time in New York, a chance meeting with an old schoolmate on a trip into the city resulted in Sadler's casting in an off-off-Broadway production of Chekhov's Ivanov. After a brief turn at the Trinity Square Repertory Company in Providence, RI, Sadler moved back to New York and rented an apartment in the East Village, beginning a grueling 12 years in which he appeared in over 75 productions. It was here that Sadler would meet Marni Bakst, the woman who would soon become his wife, and a young actor named Matthew Broderick, in a Broadway production of Neil Simon's Biloxi Blues, who would kick-start Sadler's film career with a role in Project X (1987).After memorable turns in such films as Die Hard 2 (1990), Bill and Ted's Bogus Journey, and The Shawshank Redemption (1994), Sadler found himself becoming one of the most sought-after character actors working in Hollywood. His friendly demeanor and warm sense of humor standing in stark contrast to his usually villainous onscreen antics, Sadler has gained a reputation among actors as a helpful and good-natured craftsman, always willing to offer advise and assistance without being pushy or overbearing. Increasingly busy in both television and films in the latter '90s, Sadler gained widespread recognition with his film roles in Disturbing Behavior (1998) and The Green Mile (1999) and on television with his role as Sheriff Jim Valenti on Roswell.

Trivia: Is half-Cuban and half-Venezuelan. Moved with her family from Venezuela to Miami at the age of three. Plays the piano and guitar in addition to singing, and has released several albums. She also performed numerous songs on the WB/UPN series Roswell in which she starred. Nicknamed "Majandra" by her sister, actress Marieh Delfino, who couldn't pronounce her name as a child. Performs in a duo with friend Samantha Gibb, daughter of the Bee Gees' Maurice Gibb. Danced with the Miami Ballet in the "Nutcracker." Acted with her sister, Marieh, in the 2005 film Don't Come Knocking. Had her breakout role in 1997 playing Tony Danza's daughter in The Tony Danza Show television series, but found fame on the series Roswell in the late 1990s.

Trivia: Is the fifth of eight boys in his family. Decided to give acting a try after seeing a play in high school and thinking, "Man, this stinks. I can do better than them." He moved to Hollywood immediately after graduation. Had his first starring role in a television show as Trek in Team Knight Rider. Auditioned for four different roles on Roswell before being cast as Kyle.