Theodora ‘Teddi’ Siddall was an American actress who rose to fame in her nearly four-decade-long career for her notable roles. She is best known for her role as Bill Lumbergh in Jennifer Aniston and Ron Livingston’s 1999 comedy Office Space. She was also noted in Happier Days, Grey’s Anatomy, Wings, and Fade to Black.


Quick Info
Full NameTheodora 'Teddi' Siddall
Date of Birth12th of August, 1953
Birth PlaceEvanston, Illinois, United States of America
Age64 years old (While She Died)
Height5 feet 8 inches
Spouse(s)/Partner(s)Ronald Castro, Gary Cole
ChildrenMary Cole
Net worth$100,000


Early life and Bio

On the 12th of August, 1953, she was born in Evanston, Illinois, United States of America (USA).  She and her family resided in Evanston, where she was born and raised. She also finished her education there. However, more details about her parents, siblings, and educational history are still unknown.


Teddi Siddall
Teddi Siddall Image Source Bollywood


Nationality and Physical stats

Teddi’s nationality is American, and her ethnicity is White. 

She was a woman of a slim build of height 5 feet 8 inches or 1.73 m, but her weight was not known. Similarly, her body measurements are also not known. Teddi had blonde hair, and the color of her hair was brown.

Her zodiac sign was Leo


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Education: University

There is not much known about her educational background except that Siddall received his bachelor’s degree in music from the University of Cincinnati’s College-Conservatory of Music in 1975. 


Teddi Siddall
Teddi Siddall Image Source Zimbio



Teddi Siddall began acting in the television series Buck Rogers in the Twenty-First Century in 1979. She was cast in other TV shows the following year, including Paris, Fade to Black, The White Shadow, and Pleasure Palace.

The late starred as Hillary / Lucille Scarabatza in the Comedy series Happy Days, which starred Henry Winkler, Tom Hanks, Ted McGinley, Crystal Bernard, and others from 1980 to 1982. In 1985, she went to work for the Steppenwolf Theatre Company.

In addition, the late actress appeared in a variety of films and television shows, including Grey’s Anatomy ( Starring Ellen Pompeo, Patrick Dempsey, James Pickens Jr, Jessica Capshaw, Katherine Heigi, Sarah Drew, Sara Ramirez, Eric Dane ), Forever Strong, Almost Perfect, The Accident: A Moment of Truth Movie, Midnight Caller, L.A. Rule, Midnight Caller, Hill Street Blues, Tomorrow’s Boy, and others.

Siddall’s most recent television role was in the HBO comedy series Veep (Starring Reid Scott, Timothy Simons, Matt Walsh, Gary Cole, Kevin Dunn, Phil Reeves, Dan Bakkedahi, Clea DuVall, Morgan Smith, and many others ), in which she portrayed Kent Davison and was nominated for a Primetime Emmy Award.


Grey’s Anatomy

In this American medical drama TV show, she had brilliantly performed her role. The show was created by Shonda Rhimes and starred Ellen Pompeo, Sandra Oh, Katherine Heigi, Justin Chambers, T.R. Knight, Chandra Wilson, James Pickens Jr., Isaiah Washington, and many more. The series has 17 seasons and a total of 373 episodes. 

The show is rated 7.6 by IMDb


Personal Life: Relationships

Teddi Siddall had two husbands. She married Ronald Castro on August 5, 1977, and they divorced later; however, the exact date is unknown. There was no kid for the couple.


Husband: Gary Cole

Gary Cole, an American actor, and voice actor, was her second husband. In 1988, they met when she was working as a writer on his television show Midnight Caller. On March 8, 1992, the couple married. According to sources, on June 8, 2017, the late star filed for divorce from Gray. On March 16, 1993, the couple welcomed their daughter Mary Leila Cole into the world. When her daughter was two years old, she was diagnosed with autism. Even after years of marriage, Siddall’s relationship with her husband Gary took a turn.


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Siddall officially ended the relationship with her spouse on June 19, 2017, after 25 years of being married, but she passed away on February 4, 2018, in Studio City, California, before their divorce was finalized.


Teddi Siddall
Teddi Siddall Image Source Ranny Gallery


What is Teddi Siddall’s Net Worth?

Before her death, Teddi Siddall appeared in a few films and TV shows. Unfortunately, there is no detail about how much she possessed before her death; however, given her lengthy acting career, we can speculate that she owned well over $100,000.

According to celebrity net worth, Siddall’s estranged husband Gary Cole has an approximate net worth of $4 million in 2020.



There has been no further information released about the cause of Teddi Siddall’s death. At the time of her death, she was 64 years old. Her body was buried in Forest Lawn, Louisiana, in the United States. According to sources, she died of natural causes.


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