Jayne Brook Jayne Brook is an actress who portrayed Vice Admiral Katrina Cornwell in several episodes of . Brook is probably best known for her role as Dr . Diane Grad in the CBS drama series " Chicago Hope " on which she worked between 1995 and 1999 from the latter part of the first season until the end of the fifth season . On " Chicago Hope " , Brook worked with fellow " Star Trek " alumni Ellen Bry and Cathy DeBuono . Her portrayal earned her three Screen Actors Guild Award nominations in the category Outstanding Performance by an Ensemble in a Drama Series between 1997 and 1999 . On 11 May 1996 , Brook married fellow actor and director . In 2006 , she starred along with Robert Mandan and Lawrence Pressman in the play " King Lear " at the Electric Lodge in Venice , California . Career . Television . Among Brook ' s first television roles are guest parts in episodes of " The Endless Game " ( 1989 ) and " Equal Justice " ( 1990 , with Richard Libertini , Louis Giambalvo , John Mahon , Milt Tarver , Carolyn Allport , and Jennifer Parsons ) . She then starred along with Harris Yulin , Phil Morris , Robin Gammell , Wallace Langham , Kate McNeil , and Mariette Hartley in the short - lived drama series " WIOU " between 1990 and 1991 . Eric Pierpoint , Fran Bennett , Gail Strickland , Kenneth Tigar , Skip Stellrecht , Earl Boen , Gabriel Damon , and Denise Crosby were also featured in episodes . In 1993 , Brook portrayed Officer Sarah Berkezchuk in the first season of the cop series " Sirens " where she worked for the first time with her future husband John Terlesky . She had recurring roles in the comedy series " The Old Boy Network " ( 1992 ) and in the drama series " L . A . Law " ( 1993 , with Corbin Bernsen , Stephen Root , Matthew Faison , John DeMita , Leon Russom , and Mike Genovese ) , before she joined the cast of " Chicago Hope " in 1995 . In 1998 , Brook reprised her role from " Chicago Hope " for a crossover with the fantasy / drama series " Early Edition " where she appeared in the second season episode " Mum ' s the Word " . The episode also features Brian George . Following her departure from " Chicago Hope " , Brook had a recurring role in the comedy series " Sports Night " ( 1999 - 2000 , with Timothy Davis - Reed , Ron Ostrow , and Derek Webster ) and starred in the short - lived comedy series " Imagine That " ( 2002 ) , the science fiction series " John Doe " ( 2002 - 2003 , working with Rekha Sharma , Gary Werntz , Matt Winston , Tony Plana , Stephen Lee , John Rosenfeld , April Grace , Leon Russom , Jill Lover , and supervising producers Gretchen J . Berg and Aaron Harberts ) , and in the crime / drama series " The District " ( 2000 - 2002 , with Roger Aaron Brown , Richard Fancy , and Michelle Forbes ) . Brook guest starred in episodes of " Without a Trace " ( 2003 , with Enrique Murciano , Christopher McDonald , John P . Connolly , Anton Yelchin , and Scott St . Blaze ) , " CSI : Miami " ( 2004 , with Lawrence Monoson and Joe Maruzzo ) , " Jack & Bobby " ( 2004 , with Ron Canada and Dakin Matthews ) , " Everwood " ( 2005 , with Stephanie Niznik , Gina Ravera , and Lukas Behnken ) , " Grey ' s Anatomy " ( 2006 , with Jeffrey Dean Morgan , Albert Hall , and Andrew Borba ) , " NCIS : Naval Criminal Investigative Service " ( 2007 , with Wilson Cruz ) , " Eli Stone " ( 2008 , with James Saito , Victor Garber , and Rick Worthy ) , " Brothers & Sisters " ( 2008 and 2011 , with Ned Vaughn , Thomas Kopache , and Barry Gordon ) , " Castle " ( 2009 , with Jason Brooks and Melinda Page Hamilton and directed by her husband ) , " The Cleaner " ( 2009 , with Whoopi Goldberg and Mariette Hartley ) , and " Off the Map " ( 2011 , executive produced by Gretchen J . Berg and Aaron Harberts ) . In 2006 , Brook guest starred as Rachel Lewiston in four episodes of ' s comedy / drama series " Boston Legal " , starring William Shatner and her on - screen father Rene Auberjonois . For this portrayal , she won a Prism Award for Performance in a Drama Series , Multi - Episode Storyline in 2007 . On " Boston Legal " , Brook also worked with Michael Ensign , Philip Weyland , Daniel Roebuck , Fran Bennett , Michael Reisz , Ron Canada , Jeri Ryan , Ed Begley , Jr . , David Burke , and Dennis Cockrum . In 2008 , Brook had a recurring role as Dr . Meg Porter in five second season episodes of the ABC drama series " Private Practice " . Here , she worked with Cullen Douglas , Andy Milder , Ivar Brogger , and Kim Meredith . More recently , she guest starred in episodes of " Revenge " ( 2014 , with Brett Cullen , written and executive produced by Gretchen J . Berg and Aaron Harberts , and directed by her husband John Terlesky ) and " Rizzoli & Isles " ( 2014 , with Bruce McGill and Vyto Ruginis ) . In 2017 , she appeared in four episodes of " Major Crimes " , with Jonathan Del Arco and Raymond Cruz . Film . Brook had her first role as a high school teacher in the sequel " Superman IV : The Quest for Peace " ( 1987 , with Dennis Creaghan and music by Alexander Courage ) . She was then featured in the comedy " Kindergarten Cop " ( 1990 , with Heidi Swedberg and John Christian Graas ) , the comedy " Don ' t Tell Mom the Babysitter ' s Dead " ( 1991 , with Joanna Cassidy , Concetta Tomei , and Christopher Pettiet ) , the comedy " Clean Slate " ( 1994 , with Vyto Ruginis , Olivia d ' Abo , Angela Paton , Reg E . Cathey , Brad Blaisdell , Ian Abercrombie , Brian Reddy , and Gary Bullock ) , and the comedy " Bye Bye Love " ( 1995 , with Caroline Lagerfelt , Michael Bofshever , Michael Spound , Ellen Bry , and Stephen Root ) . Also in the 1990s , she worked on a number of television movies such as the drama " Doing Time on Maple Drive " ( 1992 , with James B . Sikking , Bibi Besch , Parker Whitman , and Mark Chaet ) , the drama " In the Best of Families : Marriage , Pride & Madness " ( 1994 , with Keith Carradine and Ken Jenkins ) , the fantasy film " The Four Diamonds " ( 1995 , with Catherine Coulson and Brett Jones ) , the sport drama " A Brother ' s Promise : The Dan Jansen Story " ( 1996 , with Len Cariou and Claire Rankin ) , and the thriller " Mind Games " ( 1998 , with Marnie McPhail ) . Other film projects include the sport comedy " Ed " ( 1996 , with Stan Ivar , Jim O ' Heir , Bill Cobbs , Leonard Kelly - Young , Patrick Kerr , Jay Caputo , Doren Fein , Noon Orsatti , and Mitchell Ryan ) , the thriller " Last Dance " ( 1996 , with Mimi Craven and Ken Jenkins ) , the science fiction thriller " Gattaca " ( 1997 , with Elizabeth Dennehy , Lindsey Ginter , and David LeBell ) , the drama " Into My Heart " ( 1998 ) , and in an uncredited cameo role in the action thriller " Chain of Command " ( 2000 , with Tom Wright , John Putch , and John Beck ) , directed by her husband John Terlesky . Since 2000 , Brook was rarely seen in film productions . The few include the television comedy " My Mother , the Spy " ( 2000 ) , the television drama " Searching for David ' s Heart " ( 2004 , with Jeffrey Nordling and Mikki Val ) , the television science fiction film " The Robinsons : Lost in Space " ( 2004 ) , and the romance " The Sweet Life " ( 2016 , with Andrew Borba ) .