Trivia: A child of theatrically-inclined parents. Is a web-based theatre critic under the name of IainLovesTheatre. In 2015, Perez Hilton hired him to cover the Tony Awards. Won the lead role on Young Sheldon by sending a home video of him reading the part. Known for playing Sheldon Cooper in Young Sheldon and Ziggy Chapman in Big Little Lies.

Trivia: Made her professional debut on Roseanne in 1992, playing the younger version of Jackie — a role originated by her mother. Began performing at Northwestern University to make friends. Starred opposite Chris Pine in a 2010 production of The Lieutenant of Inishmore. Starred with her mother on Broadway in a 2013 production of The Other Place. Since 2017, has played Mary Cooper on Young Sheldon, another role originated by her mother.

Trivia: Spent a year performing at the Barn Theatre. Performed in improvisational Murder Mystery Theatre. Spent five years with the Chicago Second City improv comedy troupe. Starred as Paulie G in sitcom The Comeback in 2005, and in its revival in 2014.

Trivia: Involved in amateur theatricals since childhood, Annie Potts received her BFA in theatre arts from Missouri's Stephens College. Potts has been seen in comic supporting roles in films since 1978; she is most closely associated with the part of ditzy secretary Janine Melnitz in the two Ghostbusters flicks of the 1980s. On television, Potts has played Edith Bedelmeyer on the one-season sitcom Goodtime Girls (1980), then enjoyed a longer run as Mary Jo Shively on Designing Women (1986-93). Her characterization of outspoken gourmet chef Dana Paladino on the prime time sitcom Love and War won Annie an Emmy nomination in 1994. Annie Potts has also been featured in a popular series of commercials for a well-known corn-chip product, and has served as national spokesperson for the Women for Arthritis Foundation. In 1996 she was cast as a no-nonsense schoolteacher of troubled inner-city high schoolers in the ABC-TV show Dangerous Minds, a series based on the 1995 Michelle Pfeiffer film of the same name. She voiced the part of Bo Peep in the first two Toy Story films, and in 2003 she took part in a Designing Women reunion. That same year she was the lead in Defending Our Kids: The Julie Posey Story. She appeared intermittently on the Showtime series Huff, and in 2007 she joined the cast of the short-lived series Men In Trees. In 2012 she was cast as one of the leads in the new TV series GCB.

Trivia: Raced dirt bikes from the age of 5. Played offence and defence for the Ore City Rebels football team. Was chosen out of 10,000 candidates for his debut role in The Legacy of a Whitetail Deer Hunter.

Trivia: Made her professional acting debut in a 2014 episode of Modern Family. As of 2020, has played Missy Cooper in the Big Bang Theory spin-off series Young Sheldon since its 2017 debut. Made her feature film debut in 2017, as Young Clare in Wish Upon. In 2018, was nominated for the Best Performance in a TV Series - Supporting Young Actress Young Artist Award for her role in Young Sheldon. Is a Junior Ambassador for Children's Hospital Los Angeles.

Trivia: With his bald head and beefy exterior, Hollywood character player Rex Linn quickly built up an acting resumé replete with many portrayals of toughs, feds, cops, thugs, and -- occasionally -- unremarkable, beleaguered everymen. Born in the panhandle of the Lone Star State, Linn came of age in the small Texas town of Spearman. He discovered a lingering interest in drama during his teenage years, but buckled under the weight of discouragement from an acting coach, and put acting on the shelf to focus on career pursuits in banking and the oil industry. Dissatisfied with these fields, Linn convinced an Oklahoma talent agent to sign him, and made the leap from commercials to feature roles with his portrayal of serial murderer Fred Epps in the Peter Masterson-directed thriller Night Game (1989), opposite Roy Scheider. The pleasure of this experience prompted Linn to head to the West Coast, where he worked construction, landed intermittent acting assignments, and studied the craft under the tutelage of Silvana Gallardo in Studio City, CA. Linn was memorable as the rogue treasury agent who assists terrorist John Lithgow in the Sylvester Stallone vehicle Cliffhanger (1993), which brought the actor the recognition he so persistently sought and led to a series of supporting roles in dozens of feature films. Linn's portrayal of Frank McLaury in Wyatt Earp (1994) marked the first in a series of several onscreen collaborations with Kevin Costner that also included the romantic comedy Tin Cup (1996) and the laborious sci-fi epic The Postman (1997). Linn also landed guest appearances on such series as JAG and 3rd Rock From the Sun. He is best known, however, for his fine portrayal of Miami-Dade Police Department detective Frank Tripp on the hit crime series CSI: Miami.

Trivia: Best known for his role as Arwin in The Suite Life of Zack and Cody. Has done extensive voice work as well as live action film and television. Voiced numerous roles in The Loud House.

Trivia: Most everyone who went to high school in Livingston, NJ, with Newark-born Jason Alexander knew that the lad was destined to become a major actor. Though inclined to stoutness -- and baldness -- from age 16 onward, Alexander had such a commanding stage presence that he was invariably cast as the star in school plays, in roles ranging from romantic leads to elderly character parts. While attending Boston University, the 20-year-old Alexander was cast in the lead of the Stephen Sondheim Broadway musical Merrily We Roll Along, which might have made him an overnight star had it not closed almost as soon as it opened. Alexander's first film role was in 1981's The Burning; that same year he made his TV-movie bow in Senior Trip. By 1989, Alexander had two major industry awards to his credit: the Tony and Grammy, both for his participation in Jerome Robbins' Broadway. In 1990, he was cast as clueless loser George Costanza in the popular sitcom Seinfeld (the character was allegedly based on series co-creator Larry David). And in 1994, his voice could be heard each week on the USA cable network as the web-footed, sex-obsessed private eye hero of the animated cartoon series Duckman. Though still best-known for his portrayal of George Costanza, Alexander's feature film career picked up speed during the '90s as both a character actor in major comedies such as Dunston Checks In and a voice-over artist on such animated Disney features as Aladdin and The Hunchback of Notre Dame. In 1997, he played a more dramatic role as an AIDS-afflicted drag queen who finds romance in Love! Valour! Compassion! (1997). After a disappointing blink-and-you-miss-it comeback to the small screen as a self-help guru in Bob Patterson, Alexander leapt back to the big screen opposite Jack Black in the Farrelly brothers' Shallow Hal. He directed the sex comedy Just Looking in 1999. He had another small-screen misfire with Listen Up. But he continued to appear regularly in movies including the documentary The Aristocrats, the improvised poker movie The Grand, and Snoop Dogg's Hood of Horror. He has lent his voice to a handful of animated projects over the years, and in 2012 he appeared in the family film A Fairly Odd Movie: Grow Up Timmy Turner.

Trivia: The son of an editor for the New Yorker, the diminutive comedic actor Wallace Shawn achieved immortality for his portrayal of the Sicilian Vizzini in the 1987 classic The Princess Bride. A graduate of both Harvard and Oxford University, he has taught several courses in English and struggled as a playwright in the early '70s; in 1977 he translated Machiavelli's The Mandrake. Shawn broke into films soon after, building a successful career as a supporting actor to help fund his playwriting. He debuted in two of the best films of 1979: Woody Allen's Manhattan and Bob Fosse's All That Jazz.In 1981, he co-wrote the semi-autobiographical My Dinner With André, a talky comedy starring himself and theater director André Gregory in a dinner conversation, directed by Louis Malle. The movie was acclaimed by critics and a cult favorite. After this personal project, Shawn would build a career out of playing brief but surprisingly memorable roles in a long list of movies. His performance as the leader of the misfit criminal gang in The Princess Bride proved a pivotal moment, and that same year, he supplied the heroic voice for the Masked Avenger in Woody Allen's Radio Days. Shawn would also go on to do voice acting in projects like The Goofy Movie, All Dogs Go to Heaven, and the Toy Story series. He would also continue to work with Woody Allen throughout the next decade, and picked up a new generation of fans playing debate teacher Mr. Hall in the 1995 high school classic Clueless. Shawn would also take his quirky persona to the small screen with appearances on TV shows likeMurphy Brown, The Cosby Show, Star Trek: Deep Space Nine, Sex and the City, as well as the ABC sitcom version of Clueless. Throughout his acting career, Shawn has managed to continue writing successful plays, and eventually adapted one of them, The Designated Mourner, for a feature film in 1997. In 2002, he played the publishing boss Mr. Gelb for the "Greta" story in Rebecca Miller's Personal Velocity: Three Portraits. Shawn would continue to appear regularly on screen in the years to come, playing recurring roles on The L Word, Gossip Girl, and Eureka,

Trivia: Was a member of the New York sketch group New Exc!tement.Has had a successful career in sketch comedy in theaters.Is a co-host in the podcast Dad Scraps.Has worked with his wife in television, and their characters in Young Sheldon got married as well.Is a father to twin sons.