Swedberg was born in Honolulu, Hawaii, the daughter of Kay, a high school English teacher, and Jim Swedberg, a laser physicist. She was raised in New Mexico and attended Sandia High School in Albuquerque from 1980 to 1984. Since 1994, Swedberg has been married to Philip Holahan, and they have two children together. In 2019, Swedberg filed for divorce from her husband.
Following graduation she moved to Kentucky, where she spent a year at the Actors Theatre of Louisville, following which she acted in her first film role, Norman Jewison's 1989 In Country. She followed that with roles in the 1990 movies Welcome Home, Roxy Carmichael and Kindergarten Cop and the 1991 movies Too Much Sun and the Jim Abrahams comedy spoof Hot Shots!
During this time, she also had guest roles in a number of television series, including Matlock, Thirtysomething, Quantum Leap, Brooklyn Bridge, Northern Exposure, Sisters, Roc and Touched by an Angel. The following year she took on the role of Susan Ross in 11 episodes of Seinfeld's fourth season, 17 episodes of the seventh season and one episode of the ninth (via flashback in the 'backward' episode). She made a guest appearance in Wizards of Waverly Place as Jennifer Majorheely.
While living in Hawaii, Swedberg grew up playing the ukulele. In 1992, when playing the role of a singer/songwriter for a television pilot, she began playing the instrument again. She now sings and plays the ukulele in her band, Heidi Swedberg and The Sukey Jump Band. The band released an album entitled PLAY!, in 2009 and "My Cup of Tea" in 2013. She has another band called the Smoking Jackets which plays ukulele festivals and night clubs. The members, Daniel Ward, Craig McClelland and John Bartlit, are multi-instrumentalists who also teach at ukulele festivals.
|1990||Too Much Sun||Sister Agnes|
|1990||Welcome Home, Roxy Carmichael||Andrea Stein|
|1990||Kindergarten Cop||Joshua’s Mother|
|1991||Hot Shots!||Mary Thompson|
|1996||Up Close & Personal||Sheila|
|1997||A Parking Lot Story||Car Owner||Short film|
|1998||Dennis the Menace Strikes Again!||Alice Mitchell||Video|
|1999||Galaxy Quest||Brandon's mother|
|2000||75 Degrees in July||Kay Colburn|
|1989||Matlock||Sister Katherine||"The Priest"|
|1990||Thirtysomething||Miss Jackie||"The Guilty Party"|
|1991||Quantum Leap||Valerie Nevski||"Private Dancer"|
|1991||Northern Exposure||Linda||"Only You"|
|1991-92||Brooklyn Bridge||Miss McCullough||"When Irish Eyes Are Smiling", "The Gift"|
|1992||Sisters||Jill Parkins||"Troubled Waters", "Working Girls"|
|1992||Roc||Helen||"Roc Throws Joey Out", "Joey Messes Up"|
|1992–1996||Seinfeld||Susan Ross||Recurring role|
|1993||Roc||Helen||"You Don't Send Me No Flowers"|
|1994||Empty Nest||Patty Olsen||"Love a la Mode"|
|1994||Murder, She Wrote||Lorna Thompson||"Proof in the Pudding"|
|1994||Star Trek: Deep Space Nine||Rekelen||"Profit and Loss"|
|1994||Father and Scout||Donna Paley||TV film|
|1994||Grace Under Fire||Ramona||"Jimmy's Girl", "Cold Turkey"|
|1995||If Not for You||Melanie McKee||"Pilot"|
|1996||Touched by an Angel||Marty Dillard||"Secret Service"|
|1997||The Ticket||Rita||TV film|
|1997||Breast Men||Eileen||TV film|
|1999||Evolution's Child||Elaine Cordell||TV film|
|2001||Roswell||Meredith Dupree||"Disturbing Behavior", "How the Other Half Lives"|
|2001||Gideon's Crossing||Mrs. Cabochon||"Flashpoint"|
|2001||Strong Medicine||Celia Farber||"Rebirth"|
|2002||ER||Robin Turner||"Lockdown", "Chaos Theory"|
|2002||Gilmore Girls||Debbie Fincher||"One's Got Class and the Other Ones Dyes"|
|2003||Oliver Beene||Cynthia Vogel||"A Day at the Beach"|
|2003||Becker||Mrs. Whitford||"Mr. and Ms. Conception"|
|2006||Without a Trace||Laura Worth||"911"|
|2008||Bones||Alice Elliot||"The Finger in the Nest"|
|2009||Wizards of Waverly Place||Miss Majorhealey||"Art Teacher"|
|2010||Hawthorne||Olivia Maxwell||"Hidden Truths"|
- Jewel, Dan. "George's Girl". People.com. Retrieved August 28, 2016.
- "Heidi Swedberg Biography (1966–)". Film Reference. Retrieved June 5, 2015.
- Jewel, Dan (March 25, 1996). "George's Girl". People. Archived from the original on January 27, 2018. Retrieved January 27, 2018.
- Trock, Gary (October 29, 2019). "'Seinfeld' Star Who Played Susan Ross Files for Divorce from Longtime Husband". The Blast. Retrieved June 3, 2020.
- "Heidi Swedberg – Sukey Jump Music". sukeyjumpmusic.com. Archived from the original on May 6, 2010. Retrieved June 6, 2015.
- "Smoking Jackets | Ukulele Adventures". ukuleleadventures.com. Archived from the original on January 27, 2018. Retrieved January 27, 2018.
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