Question: Heidi Swedberg, is an American actress and musician, best known for her role as Susan Ross, as the fiancée of which character in the American television sitcom "Seinfeld" (1989–1998), played by Jason Alexander?
Context: Seinfeld: A XXX Parody is a 2009 American pornographic situation comedy film that parodies the American television sitcom "Seinfeld" which ran from 1989 until 1998.  Like other porn parodies, it has the same characters, settings and other production elements of the original show but adds an explicitly sexual element that was not present in the series.  Written by A.J. Slater and directed by Lee Roy Myers, the plot is based on the episode "The Soup Nazi".  The film stars James Deen, Kristina Rose, Eric John, Steve Pomerantz, Evan Stone, Ashlynn Brooke, London Keyes, Natalie Horton, Tony Disergio, Sasha Grey, Sadie West and Cassandra Calogera.  Released to DVD on June 29, 2009, the movie received positive reviews from critics, who enjoyed the acting, casting, sexual content and comedy.  In addition to the positive reception, it also earned ten nominations at the 27th AVN Awards. George Louis Costanza is a character in the American television sitcom "Seinfeld" (1989–1998), played by Jason Alexander.  He has variously been described as a "brain-damaged, short, stocky, slow-witted, ugly, old, bald man" (by Elaine Benes and Costanza himself) and "Lord of the Idiots" (by Costanza himself).  George and Jerry were junior high school friends and remained friends afterwards.  He is friends with Jerry Seinfeld, Cosmo Kramer, and Elaine Benes.  George appears in every episode except "The Pen" (third season). Heidi Swedberg (born March 3, 1966) is an American actress and musician, best known for her role as Susan Ross, the fiancée of George Costanza, on the television sitcom "Seinfeld". Elaine Marie Benes is a fictional character on the American television sitcom "Seinfeld" (1989–1998), played by Julia Louis-Dreyfus.  Elaine's best friend is her ex-boyfriend Jerry Seinfeld, and she is also good friends with George Costanza and Cosmo Kramer.  Julia Louis-Dreyfus received critical acclaim for her performance as Elaine, winning an Emmy, a Golden Globe and five SAG Awards. Julia Louis-Dreyfus reprised the role during season 41 of "Saturday Night Live". Seinfeld is an American sitcom that ran for nine seasons on NBC, from 1989 to 1998.  It was created by Larry David and Jerry Seinfeld, the latter starring as a fictionalized version of himself.  Set predominantly in an apartment building in Manhattan's Upper West Side in New York City, the show features a handful of Jerry's friends and acquaintances, particularly best friend George Costanza (Jason Alexander), former girlfriend Elaine Benes (Julia Louis-Dreyfus), and neighbor across the hall Cosmo Kramer (Michael Richards).  It is often described as being "a show about nothing", as many of its episodes are about the minutiae of daily life. Bob Patterson was an American television sitcom starring Jason Alexander, produced by Ira Steven Behr.  It was directed by Robby Benson and Barnet Kellman.  The show debuted on ABC on October 2, 2001 and the final episode aired October 31 of that year.  The show was cancelled after five of the ten episodes aired. Jerome "Jerry" Seinfeld is the protagonist of the American television sitcom "Seinfeld" (1989–1998).  The straight man among his group of friends, this semi-fictionalized version of comedian Jerry Seinfeld was named after, co-created by, based on, and played by Seinfeld himself.  The series revolves around Jerry's misadventures with his best friend George Costanza, neighbor Cosmo Kramer, and ex-girlfriend Elaine Benes.  He is usually the voice of reason amidst his friends' antics and the focal point of the foursome's relationship. "Seinfeld" is an American television sitcom created by Jerry Seinfeld and Larry David.  "Seinfeld" is a "show about nothing," similar to the self-parodying "show within a show" of fourth-season episode "The Pilot."  Jerry Seinfeld is the lead character and played as a fictionalized version of himself.  Set predominantly in an apartment block on New York City's Upper West Side, the show features a host of Jerry's friends and acquaintances, which include George Costanza, Elaine Benes, and Cosmo Kramer, who are portrayed by Jason Alexander, Julia Louis-Dreyfus, and Michael Richards, respectively. "The One with Ross' Wedding" is the two-part fourth season finale of the American television sitcom "Friends", comprising the 96th and 97th episodes of the series overall.  Originally broadcast by NBC on May 7, 1998, the episode features Ross, Monica, Joey, Chandler and later Rachel travelling to England to attend the wedding of Ross Geller (David Schwimmer) to his fiancée Emily (Helen Baxendale) in London.  Ross and Emily's wedding vows are ruined when Ross accidentally says "I, Ross, take thee Rachel"; as the registrar asks Emily if he should continue, the episode ends on a cliffhanger until the season 5 premiere "The One After Ross Says Rachel". Rhoda Gemignani (born October 21, 1940, in Philadelphia, Pennsylvania) is an American actress, best known for her recurring role as Mrs. Rossini in the American television sitcom "Who's the Boss? ".  She also played in other sitcoms, including "The Bob Newhart Show", "The Jeffersons", "Just Shoot Me! " as Elliot's mother, "The Twilight Zone", "Family Album" (as Ruby DeMattis), "Friends", "Seinfeld", "Full House", "Kojak", "The Mary Tyler Moore Show", "NBC Special Treat", "Walker, Texas Ranger" and many others.
Answer: George Costanza