★ 8.2 
Acting
Jayne Brook
Jayne Brook is best known for Grey's Anatomy, NCIS, Castle and Star Trek: Discovery. Jayne Brook was born on September 16, 1960. Jayne Brook is 66 years old (born September 16, 1960).
- Born
- September 16, 1960 (66 years old)
- Place of birth
- Northbrook, Illinois, USA
Biography
Jayne Brook (born September 16, 1960) is an American actress, best known for her roles as Dr. Diane Grad on the medical drama Chicago Hope, as a series regular for five of the show's six seasons, and Mary Ann Mitchell on The District from 2000 to 2002. Between 2017 and 2019, Brook had a recurring role as Starfleet Vice Admiral Katrina Cornwell in the series Star Trek: Discovery.
Known for
Filmography
- 2017Star Trek: DiscoveryKatrina Cornwell
- 2011RevengeLoretta Deaton
- 2010Rizzoli & IslesSenator Valerie Bloomfield
- 2009CastleClaudia Peterson
- 2008Eli StoneRebecca Green
- 2007Private PracticeDr. Meg Porter
- 2006Brothers and SistersBertha Wandell
- 2005Grey's AnatomyGwen Graber
- 2004Boston LegalRachel Lewiston
- 2003NCISLyndi Crawshaw
- 2002John DoeJamie Avery
- 2002CSI: MiamiMia Eckhart
- 2002Imagine ThatWendy Miller
- 2002EverwoodMrs. Rogers
- 2002Without a TraceAnne Atkins
- 2000The DistrictMary Ann Mitchell
- 1998Sports NightAbby Jacobs
- 1996Early EditionDr. Diane Grad
- 1994Chicago HopeDiane Grad
- 1993SirensSarah Berkezchuk
- 1990WIOUAnn Hudson
Frequently asked questions
What movies and shows has Jayne Brook been in?
Jayne Brook is best known for Grey's Anatomy, NCIS, Castle and Star Trek: Discovery.
When was Jayne Brook born?
Jayne Brook was born on September 16, 1960. (Northbrook, Illinois, USA)
How old is Jayne Brook?
Jayne Brook is 66 years old (born September 16, 1960).
Updated: October 25, 2026 ·