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: 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: The son of character actor Ed Begley, Sr., he began acting while still a teenager, appearing on the TV series My Three Sons when he was 17. Begley performed as a stand-up comic at colleges and nightclubs and worked briefly as a TV cameraman before landing a string of guest appearances on TV series such as Happy Days and Columbo. He debuted onscreen in Now You See Him, Now You Don't (1972), going on to play small roles in a number of minor films; by the mid '70s he was getting somewhat better roles in better films. Begley became well-known in the '80s, portraying Dr. Erlich on the TV series St. Elsewhere; for his work he received an Emmy nomination. His success on TV led to much better film roles, but he has never broken through as a big-screen star.

Trivia: Minneapolis native Melissa Peterman studied theater at Minnesota State University before moving into the professional sphere, starring in over 600 performances of the Hey City Theater production of Tony n' Tina's Wedding. Her first film role came in 1996, when she was cast as Hooker #2 in the Cohen Brothers classic Fargo. Peterman went on to find her big break with a starring role on the sitcom Reba in 2001. She would also appear in several popular shows over the coming years, like American Dad! and Rita Rocks. In 2009, Peterman took on hosting duties on the reality series The Singing Bee.

Trivia: For an actor who claims not to enjoy horror films as recreational viewing, Dan Byrd certainly has racked up his fair share of genre credits. Yet, despite prominent roles in such high-profile frighteners as Firestarter 2: Rekindled, Mortuary, and The Hills Have Eyes, young Byrd also managed to build the foundation for a successful television career and squeeze in roles in such family-friendly fare as A Cinderella Story in between stints of fending off mutants, vampires, and sadistic serial killers. A devoted actor since the age of eight, the Marietta, GA, native honed his craft in numerous stage roles before making the transition to the screen with appearances in Judging Amy, ER, CSI, Touched by an Angel, and Joan of Arcadia. While The Hills Have Eyes marked Byrd's first substantial role in a feature film, he has since gone on to appear as the son of John Travolta's character in the 2006 crime thriller Lonely Hearts and as one of many whose lives collide in the most unexpected of ways in the ensemble drama Jam. Additionally, Byrd has set himself apart from the pack by taking home honors at The Burbank International Children's Film Festival for his performance in The First of May, and by winning a Young Artist Award for his role in the Emmy-nominated television series Any Day Now. He appeared in the short-lived television series Aliens in America in 2007, but had a substantial part in the surprise 2010 box office hit Easy A.