John Doman was born and raised in Philadelphia, PA. He is a 1962 graduate of Northeast Catholic High School where in his senior year he was named to the All-Catholic League Football team. John was recruited by Penn coaches John Steigman and Snakey Graham and in the Fall of 1962 began his freshman year. While majoring in English Literature, he became a starting defensive back on the Penn team in his sophomore year and played that position for three seasons.

Graduating in 1966, John enrolled in the Marine Corps Officer Candidate School in Quantico, Virginia. He was commissioned a 2nd Lieutenant in March, 1967. After 6 months of training at The Basic School in Quantico, John was sent to Washington, D.C. to study Vietnamese at the Department of Defense Language School. After 9 months of language training he received orders to report to the 3rd Marine Division in Vietnam.

In Vietnam John served as an infantry company commander with the 3rd Battalion, 4th Marines. He finished his Vietnam tour of duty as an Aerial Observer for the 3rd Marine Division flying out of Quang Tru airbase. He flew 146 missions in support of ground troops operating in the "I" Corps Area of South Vietnam.

Following the Marine Corps, John went on to Graduate Business School at Pennsylvania State University and received an MBA in Marketing in 1972. John's first job in advertising was with SSC&B Advertising as an Account Management Trainee working on the Lever and Bristol Myers accounts. From there he moved on to Norman Craig & Kummel where he was VP, Account Supervisor on Shulton's Old Spice business. In 1977 he joined the start up office of TBWA, a European agency that was founded in Paris. He was one of six at the start. When he left 14 years later there were 250 employees at TBWA, New York.

While at TBWA John worked with many of the agency's clients including two of the agency's biggest successes, Evian Water and Absolute Vodka. As Executive Vice President, Head of Business Development he was responsible for the agency's new business program which led to TBWA being named Agency of the Year in 1990 by AdWeek Magazine.

Throughout his days in the advertizing business, John harbored a secret dream of having a second career as an actor. At the age of 43 he began living a double life: ad man by day, clandestine actor by night, taking classes and doing shows in small New York theaters. In 1991, when he was cast in a commercial for AT&T, John resigned from advertising and began his career as an actor.

On television John has created many memorable characters including Bill Rawls on the HBO hit series "The Wire", Carmine Falcone on the Fox series "Gotham", and Bruce Butler on Showtime's "The Affair" which won a Golden Globe in its first season. He stars as Rodrigo Borgia in Tom Fontana's "Borgia" on Netflix and as Aidan Moran as the new AMC series "Feed the Beast". He has worked on many other television shoes including "Damages", "ER", "Person of Interest", "Oz", "House of Cards", "Madame Secretary", "Rizzoli & Isles" and the many versions of "Law & Order."

John has appeared in over 35 films including "Blue Valentine", "The Company of Men", "Mystic River", "Lonely Hearts", "City by the Sea", "Mercury Rising" and "Cop Land".

On the stage, John has worked in New York Off-Broadway and has appeared at major regional theaters around the country.

John was married for 34 years to Linda Rudloff Doman who passed away in 2014. He resides at their family home in Brooklyn Heights, NY.