Jack Blessing was born and raised in the suburban surroundings of Baltimore, laying the foundation for his future career. His professional journey began as a member of Boston's influential improvisational company, "The Proposition". This experience played a significant role in his development as a performer.
In his final year at "The Proposition", a Paramount casting director spotted Jack and put him in the Emmy award-winning television film "The Defection of Simas Kudirka" (1978) alongside Alan Arkin. This breakthrough role led to Jack's relocation to New York City. However, his stay was short-lived.
Following another TV movie, "Women at West Point" (1979) with Linda Purl, Jack moved to Los Angeles. He spent two years working on episodic television, appearing in a Roger Corman film, and starring in the infamous "Heaven's Gate" (1980).
Jack's big break came when he landed his first television series, a half-hour show from Disney TV for CBS called "Small & Frye" (1983). The show featured Darren McGavin as "Nick Small" and Jack as "Chip Frye". Besides "Small & Frye", Jack has starred in numerous other series.
Notably, he played alongside George C. Scott in the Fox series "Mr. President" (1987) and in what is arguably his most recognizable role, Jack portrayed "MacGillicuddy" in the final two seasons of the television classic "Moonlighting" (1985). He also played "Mr. Donner" in the Téa Leoni series "The Naked Truth" (1995) and "Jack Powers" on "George Lopez" (2002).
Jack's extensive television career boasts over 100 roles, including performances in some of television's most iconic shows, such as "M*A*S*H" (1972),"China Beach" (1988),"Thirtysomething" (1987),"Roseanne" (1988),"Northern Exposure" (1990),"NYPD Blue" (1993),"The X-Files" (1993),and "CSI" (2010).
In addition to his on-camera work, Jack has lent his voice to over 3000 movies and television shows.
He currently resides in Chatsworth, California, with his wife Lora. They have two sons, Ian and Christopher.