William David Daniels (born March 31, 1927) is an American actor and former president of the Screen Actors Guild (1999 to 2001). He is known for his performance as Dustin Hoffman's father in The Graduate (1967), as Howard in Two for the Road, as John Adams in 1776, as Carter Nash in Captain Nice, as Mr. George Feeny in ABC's Boy Meets World, as the voice of KITT in Knight Rider, and as Dr. Mark Craig in St. Elsewhere, for which he won two Emmy Awards.

William Daniels was born in Brooklyn, New York, the son of Irene and David Daniels, a builder. He graduated from Northwestern University in 1949, where he was a member of Sigma Nu fraternity. He has been married to actress and fellow Emmy Award-winner Bonnie Bartlett since June 30, 1951. They have two children.

William Daniels began his career as a member of the singing Daniels family in Brooklyn, New York. He made his television debut as part of a variety act (along with other members of his family) in 1943, on NBC, then a single station in New York. He made his Broadway debut in 1945, in Life With Father, and remained a busy Broadway actor for decades afterwards. Broadway credits include starring or supporting roles in 1776, A Thousand Clowns, On a Clear Day You Can See Forever and A Little Night Music. He earned an Obie Award for The Zoo Story (1960).

Howard Michael "Howie" Mandel (born November 29, 1955) is a Canadian comedian, and television host. He is well known as host of the NBC game show Deal or No Deal, as well as the show's daytime and Canadian-English counterparts. Before his career as a game show host, Mandel was best known for his role as rowdy ER intern Dr. Wayne Fiscus on the NBC medical drama St. Elsewhere. He is also well known for being the creator and star of the children's cartoon Bobby's World. On June 6, 2009, he hosted the 2009 Game Show Awards on GSN. Mandel became a judge on NBC's America's Got Talent, replacing David Hasselhoff, in the fifth season of the reality talent contest. He was a supporting character in the 2000 film Tribulation, from Cloud Ten Pictures.

David Bowditch Morse (born October 11, 1953) is an American stage, television, and film actor. He first came to national attention as Dr. Jack Morrison in the medical drama St. Elsewhere from 1982 to 1988. Morse continued his movie career with roles in Dancer in the Dark, The Indian Runner, The Negotiator, Contact, The Green Mile, Disturbia, The Long Kiss Goodnight, The Crossing Guard, The Rock, Extreme Measures, 12 Monkeys, 16 Blocks, and Hounddog.

In 2006, Morse had a recurring role as Detective Michael Tritter on the medical drama House for which he received an Emmy Award nomination. Morse portrayed George Washington in the 2008 HBO Miniseries John Adams, which garnered him a second Emmy nomination. Morse has received acclaim for his portrayal of Uncle Peck on the Off-Broadway play How I Learned to Drive for which he earned a Drama Desk and Obie Award. He also had success on Broadway, portraying James "Sharky" Harkin in The Seafarer. As of 2011, Morse is a regular on the HBO series, Treme, where he plays an honest police officer in a corrupt department.