Eigenberg's first recurring role was on Homicide: Life on the Street, where he portrayed a copycat sniper, before appearing in The Practice. He voiced the role of Nermal in Garfield: The Movie. He made an appearance on an episode of ER during the show's final season, and made an appearance in the movie Daybreak. He appeared in the American TV show The King of Queens, in the episode entitled "Flash Photography", where he portrayed the groom of Carrie's annoying friend.
In 2002, Eigenberg starred as the short-lived character Officer Ross in the Season 3 episode of Third Watch, entitled "Superheroes: Part 1". In July 2004, he appeared in the sci-fi series The 4400. He appeared as Carl Morrissey in part two of the pilot, entitled "The New and Improved Carl Morrissey". Eigenberg appeared as a suspect in the sixth episode of the TV series Raines, entitled "Inner Child", which first aired on April 20, 2007.
Eigenberg's best known role is the role of Steve Brady in the HBO series Sex and the City. The on-and-off-again boyfriend and eventual husband to Miranda Hobbes (played by Cynthia Nixon), Eigenberg later reprised the role in both Sex and the City films in 2008 and 2010, and in the revival series And Just Like That... in 2022.[9]
In 2009, he appeared in Season 6 episode 13 of Cold Case titled "Breaking News". He played the 1988 version of Nathan Kravet. In 2010, he appeared as Agent Russell Goldman in the Season 5 episode of Criminal Minds, entitled "Parasite". In March 2011, he appeared in Season 3 of Castle, in the episode "One Life to Lose", as Peter Connelly. He appeared in the May 16, 2012 episode of Law & Order: Special Victims Unit, entitled "Strange Beauty". In the fall of 2012, Eigenberg joined the cast of NBC's Chicago Fire as Senior Firefighter/Lieutenant Christopher Herrmann.
Stage Career
Eigenberg first appeared on Broadway in the original production of John Guare's Six Degrees of Separation as the "Hustler" from 1990 to 1992. He returned from 2003 to 2004 as Toddy Koovitz in the original Broadway production of the Richard Greenberg play Take Me Out.[10]
Personal life
Eigenberg and his wife Chrysti (née Kotik) have a son, Louie Steven (born January 19, 2009) and a daughter, Myrna Belle (born January 31, 2014).[3][11][12] In 2021, it was reported that Eigenberg had been diagnosed with hearing loss.[13]