Trivia: A singer almost from the time she learned to talk, American actress Shirley Jones was entered by her vocal coach in the Miss Pittsburgh contest at age 18. The attendant publicity led Jones to an audition with Rodgers and Hammerstein for potential stage work. Much taken by Jones' beautifully trained voice, the producers cast her as the leading lady in the expensive, prestigious film production of their theatrical smash Oklahoma! (1955). In 1956 Jones starred in another Rodgers and Hammerstein film adaptation, Carousel; this and her first film tended to limit her to sweet, peaches 'n' cream roles for the next several years. Thankfully, and with the full support of director Richard Brooks, Jones was able to break away from her screen stereotype with her role as a vengeful prostitute in Elmer Gantry (1960) -- a powerfully flamboyant performance that won her an Academy Award. Alas, filmgoers preferred the "nice" Shirley, and it was back to goody-goody roles in such films as The Music Man (1962) and A Ticklish Affair (1963) -- though critics heartily praised Jones' performances in these harmless confections. It was again for Brooks that Shirley had her next major dramatic film role, in 1969's The Happy Ending, which represented one of her last movie appearances before her four-year TV stint as the glamorous matriarch of The Partridge Family. This popular series did less for Shirley than it did for her stepson, teen idol David Cassidy, but The Partridge Family is still raking in ratings (and residuals) on the rerun circuit. Her unhappy marriage to the late actor Jack Cassidy long in the past, Jones found domestic stability as the wife of actor/agent Marty Ingels, with whom she wrote a refreshingly candid dual biography. The actress also played a recurring character on The Drew Carey Show (1998-1999), and appeared in numerous documentaries throughout the 2000s. Jones had a supporting role in 2006's Grandma's Boy, and guest roles on shows like Cougar Town and Raising Hope.

Trivia: A performer whose career soared and peaked in the early '70s, multifaceted entertainer David Cassidy dramatically redefined the term "teen idol," as others including Paul Anka and Neil Sedaka had before him. In his heyday, Cassidy culled an untoward number of admirers, including legions of starstruck teenage girls. The son of actors Jack Cassidy and Evelyn Ward (and the stepson of Shirley Jones), David landed his first major break on the blockbuster '70s musical sitcom The Partridge Family (1970-1974), opposite Jones, Susan Dey, and Danny Bonaduce. Based very loosely on the experiences of the real-life family vocal band the Cowsills, the now-iconic series told of a widowed mother and her brood of rowdy kids, who became national pop stars overnight, and eked out a life touring in a colorful schoolbus and performing all over the country. Cassidy -- 20 years old when the series premiered -- played the eldest Partridge boy, 16-year-old David. Series producers took advantage of the program's success by marketing the Partridges as a real-life recording group, fronted by David (who was not a professional musician); this worked, and brought Cassidy Grammy Awards and the largest celebrity fan club in the history of recorded music. The triumphs were somewhat short-lived, however, and by 1975 (a year after Family folded) Cassidy's popularity with the younger market had declined, as new and fresher talent took his place. He responded by branching out into acting roles, in films such as A Chance to Live (1978), The Narc (1978), and The Night the City Screamed (1980), and in time established an agreeable presence as a musical theater star, on Broadway and in London's famed West End.Cassidy's overall popularity rebounded in the mid- to late '90s. Thanks in no small part to a nostalgia craze and to presence on VH1, he landed an assignment opening the 75-million-dollar show EFX at the MGM Grand, which in turn gave him the clout to mount and produce his own revue in Vegas, a tribute to Sinatra and co. christened The Rat Pack Is Back (1999). In the following decade, Cassidy began touring once again, signed a new record deal, and issued a series of albums including Then and Now (2001) and Touch of Blue (2003). Busy as ever, he topped TV GUIDE's list of the 25 Greatest Teen Idols in 2005.

Trivia: Like her TV contemporaries Ron Howard and Valerie Bertinelli, actress Susan Dey grew up before the eyes of America. In 1970, the eighteen-year-old Dey was cast as Laurie Partridge on the popular sitcom The Partridge Family, garnering excellent reviews from critics who otherwise wrote off the series as a waste of time. As early as the 1975 TV movie Cage without a Key, Susan was struggling to break away from her goodie-goodie Partridge image. She almost succeeded with her nude love scene in the 1977 theatrical feature First Love, but audiences still preferred to see Susan in such roles as Jo March in the 1977 made-for-TV Little Women. Also in 1977, she starred in the obscure television series Loves Me, Loves me Not. In 1986, she accepted the role of no-nonsense attorney Grace Van Owen in the courtroom television drama LA Law, and in 1992, Susan was permitted to flex her comedy muscles once more as Wallace Porter in the weekly sitcom Love and War, though she grew dissatisfied with her role and left the series in 1993. Dey would continue to appear in selective projects over the coming years, specializing in Lifetime orignal movies like Deadly Love, Blue River, and Bridge of Time. Dey would also enjoy a story arc on the series Third Watch.

Trivia: Was the youngest of eight children. Learned to ride a motorbike before the age of 4. First professional acting job was in a Barbie commercial. Was thanked by director-producer Taylor Hackford (An Officer and a Gentleman; Against All Odds) in his Oscar acceptance speech after he won the Best Live Action Short award in 1979 for Teenage Father. Showed horses until she was 18, winning numerous ribbons. After college, owned a bookstore until 1993.

Trivia: An Ohio farm boy, Dean Jagger dropped out of school several times before attending Wabash College. He was a schoolteacher for several years before opting to study acting at Chicago's Lyceum Art Conservatory. By the time he made his first film in 1929, Jagger had worked in stock, vaudeville and radio. At first, Hollywood attempted to turn Jagger into a standard leading man, fitting the prematurely balding actor with a lavish wig and changing his name to Jeffrey Dean. It wasn't long before the studios realized that Jagger's true calling was as a character actor. One of his few starring roles after 1940 was as the title character in Brigham Young, Frontiersman--though top billing went to Tyrone Power, cast as a fictional Mormon follower. Jagger won an Academy Award for his sensitive performance in Twelve O'Clock High (1949) as one of General Gregory Peck's officers (and the film's narrator). Physically and vocally, Jagger would have been ideal for the role of Dwight D. Eisenhower, but he spent his career studiously avoiding that assignment. Having commenced his professional life as a teacher, Dean Jagger came full circle in 1964 when cast as Principal Albert Vane on the TV series Mr. Novak.

Trivia: Character actor, onscreen from the '70s.