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: Is of American and Canadien descent.Was raised in Indonesia and moved during her childhood to several countries including Nigeria, United Kingdom, and Canada.Moved to Austin, Texas, at the age of 16.Made her debut as an actress in Broadway in the musical Rex.Made her debut as an actress on television in 1979.

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: Has guest starred on numerous shows, including CSI: Crime Scene Investigation, The Unit and New Girl. Landed her first role as a series regular in 2012 on the sitcom The Goodwin Games; the role was originally written for a middle-aged man. Was cast as a television lead for the first time in the pilot for the sitcom To My Future Assistant. Participated in a 2012 campaign for CAPE (Coalition of Asian Pacifics in Entertainment). Is a Hello Kitty aficionado.

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.

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: Composer John Debney penned his first film score for the actioner The Wild Pair (1987). Since then, he has scored numerous major features and even a few television efforts. He has worked closely with director Steven Spielberg and Amblin Entertainment on a number of projects, including the Spielberg-produced sci-fi TV drama Seaquest DSV. After scoring the Disney comedy Hocus Pocus (1993), Debney signed a three-film contract with the Mousefactory that included Houseguest (1995). His other film credits include Cutthroat Island (1995), The Relic (1996), and Paulie (1998)

Trivia: Began his career as a touring singer and songwriter. Wrote for animated series until getting his big break as a supervising producer for the sitcom Roseanne. Wrote the Deborah Harry 1980s hit "French Kissin' in the USA." Co-composed the soundtrack for the 1980s television series Teenage Mutant Ninja Turtles. Received a star on the Hollywood Walk of Fame in 2009. Four of his shows — The Big Bang Theory, Mike & Molly, Mom and Two and a Half Men — were all in the Top 20 primetime programs during the week of January 27-February 2, 2014. Received an honorary doctoral degree from the State University of New York at Potsdam. Is known for his vanity cards (run during the end credits of his series) in which he shares his thoughts about life.

Trivia: A Chicagoan from head to toe, American comedian Bob Newhart started his workaday life as a certified public accountant after flunking out of law school. As a means of breaking his job's monotony, Newhart would call his friend Ed Gallagher, and improvise low-key comedy sketches. A mutual friend of Newhart and Gallagher's, Chicago deejay Dan Sorkin, tape-recorded some of these off-the-cuff routines and played them for Warner Bros. records. Newhart suddenly found himself booked into a Houston nightclub -- his first-ever public appearance. Armed with telephone-conversation routines which delineated how Abe Lincoln would be handled by a publicity agent, or how Abner Doubleday would have fared trying to sell baseball to a modern-day novelty firm, Newhart recorded his first comedy album in 1960 -- which evidently struck a nerve with fellow white-collar workers, since it sold 1,500,000 copies. The hottest young comic on the club-and-TV circuit, Newhart was offered starring roles in situation comedies, but felt he wasn't a good enough actor to make a single character interesting week after week. Instead, he signed in 1961 for NBC's The Bob Newhart Show, a comedy-variety series which nosedived in the ratings but won an Emmy. Fearing that TV would eat up all his material within a year or so, Newhart went back to nightclubs after his one-season series was cancelled. Sharpening his acting skills in TV guest spots and in several films (his first, 1962's Hell is For Heroes, was so unnerving an experience that Bob repeatedly begged the producers to kill his character off before the fadeout), Newhart felt emboldened enough to attempt a regular TV series again in 1972. This Bob Newhart Show cast the comedian as psychologist Bob Hartley - an ideal outlet for his "button-down" style of dry humor. Six seasons and several awards later, Newhart was firmly established as a television superstar; this time around he wasn't cancelled, but ended the series on his own volition, feeling the series had exhausted its bag of tricks. Most popular sitcom personalities had come acropper trying to repeat their first success with a second series, but Newhart broke the jinx with Newhart in 1982, wherein Bob played author Dick Loudon, who on a whim decided to open a New England colonial inn. Newhart was every bit as popular as his earlier sitcom, and, like the previous show, the series ended (in 1990) principally because Newhart chose to end it. This he did with panache: Newhart's final scene suggested the entire series had been a bad dream experienced by Bob Newhart Show's Bob Hartley! A third starring sitcom, 1992's Bob, found Newhart playing a cult-figure comic book artist; alas, despite excellent scriptwork and the usual polished Newhart performance, this new series fell victim to format tinkering and poor timeslots. Over teh course of the next few decades, Newhart would frequently turn up in guest roles on shows like Murphy Brown, ER, and Desperate Housewives, and though his 1997 odd couple sitcom George & Leo failed to find its footing, he did appear in all three installments of TNT's popular fantasy trilogy The Librarian, starring Noah Wyle. Meanwhile, cameos in such films as Elf and Horrible Bosses continually offered a gentle reminder that comedy's nicest funnyman could still crack us up.