Main Characters
Jerry Seinfeld stars as a fictionalized version of himself, a stand-up comedian living in a two-bedroom apartment on the Upper West Side of Manhattan. The show ran for nine seasons on NBC, with the finale airing on May 14, 1998, and the character appeared in 180 episodes. NBC aired the series as part of its primetime lineup.
Jason Alexander portrays George Costanza, a neurotic, short-statured man who lives with his parents for most of the series and works in real estate and publishing. Julia Louis-Dreyfus plays Elaine Benes, a writer and editor who frequently navigates complex social and professional conflicts. Michael Richards plays Cosmo Kramer, a lanky, eccentric neighbor known for his impulsive schemes and physical comedy.
Recurring Characters
Newman, played by Wayne Knight, is Jerry's nemesis and a mail carrier who appears in 48 episodes across the series. Frank and Estelle Costanza, George's parents, are portrayed by Jerry Stiller and Estelle Harris, with their loud arguments and bizarre household rules recurring throughout the show. Seinfeld.com lists Newman as one of the most iconic recurring figures.
Other notable recurring characters include Jackie Chiles, a pompous lawyer played by Phil Morris, who appears in 12 episodes, and J. Peterman, a real-life catalog entrepreneur whose fictionalized version is portrayed by John O'Hurley. The Soup Nazi, based on real-life soup vendor Al Yeganeh, appears in the episode titled "The Soup Nazi" and enforces strict ordering rules at his soup stand.
Minor and Guest Characters
The show features a rotating cast of minor characters, including Steve Koren, a writer played by Bryan Cranston, and Uncle Leo, Jerry's uncle portrayed by Len Lesser, who appears in 21 episodes. Forbes has noted the show's dense character web as a key factor in its rewatchability.
Guest stars include Bill Murray as a fictionalized version of himself in "The Boyfriend" and Patrick Warburton as David Puddy, Elaine's on-again, off-again boyfriend. The series introduced over 150 named characters across its run, with many appearing in only one or two episodes, contributing to the show's detailed portrayal of everyday life in New York City.