Dina Meyer Dina Meyer is the actress who played Commander Donatra in . She is perhaps best known for her role as Dizzy Flores in the 1997 science fiction film " Starship Troopers " , which co - starred Clancy Brown , Christopher Curry , Lenore Kasdorf , and Brenda Strong and featured a musical score by Basil Poledouris . Meyer is also known for playing Detective Kerry in the first four " Saw " films . Career . Television . Meyer first acquired recognition for her recurring role as Lucinda Nicholson during the fourth season of the popular series " Beverly Hills , 90210 " . Among the performers she worked with on this series were Michael Durrell , Ann Gillespie , Tracy Middendorf , Lawrence Monoson , Claudette Nevins , Noley Thornton , and Cress Williams . Those who directed Meyer on " 90210 " include Chip Chalmers , Les Landau , and James Whitmore , Jr . In 1997 , Meyer made three appearances on the hit NBC sitcom " Friends " as Joey ' s actress - girlfriend , Kate . The following year , she made a guest appearance on " Ally McBeal " along with her " Star Trek Nemesis " co - star , J . Patrick McCormack . In 2000 , Meyer starred as Agent Holiday in the short - lived UPN series " Secret Agent Man " , in which John de Lancie and Musetta Vander guest - starred . She also made an appearance on the HBO series " Six Feet Under " with Ed O ' Ross and Kellie Waymire . During the 2002 - 2003 television season , Meyer starred as Barbara Gordon , aka The Oracle ( formerly Batgirl ) in the superheroine adventure drama " Birds of Prey " . This show ' s cast also included Ian Abercrombie as faithful butler Alfred Pennyworth . Meyer subsequently had contracted roles on two other short - lived series : a recurring role on NBC ' s " Miss March " ( 2003 - 04 ) and a regular role on Fox ' " Point Pleasant " ( 2005 - 06 ) . The latter series was produced by writer Robert Doherty and Unit Production Manager Kelly A . Manners . Other recent television credits include the movie " Wild Things : Diamonds in the Rough " ( 2005 , with Van Epperson ) and guest appearances on " CSI : Crime Scene Investigation " ( with Robert Curtis Brown and Wallace Langham ) , " Thief " ( starring Clifton Collins , Jr . ) , " CSI : Miami " ( with David Lee Smith ) , " Monk " ( with Ruth Williamson ) , " Burn Notice " ( with Jay Karnes and Michael Shanks ) , and " Castle " ( with Tom Schanley ) . Film . Meyer made her feature film debut with the lead female role in the 1995 science fiction thriller " Johnny Mnemonic " , which featured production design by Nilo Rodis - Jamero . Meyer then starred in the 1996 fantasy film " Dragonheart " , which co - starred Brian Thompson and featured the voice of Sean Connery . Following her role on " Starship Troopers " , Meyer starred in the horror film " Bats " , which , like " Nemesis " , was written by John Logan . The cast of " Bats " also featured Bob Gunton . She subsequently starred in such films as " Deadly Little Secrets " ( with Roger Cross ) , " Unspeakable " ( with Marco Rodriguez ) , and " Eye See You " ( aka " D - Tox " , with Chris Nelson Norris ) before playing Donatra in " Star Trek Nemesis " . Meyer played the supporting role of Detective Allison Kerry in the 2004 horror film " Saw " , which became a blockbuster hit and spawned a highly - successful franchise . One - time guest actor Benito Martinez also appeared in the first film . Meyer reprised her role as Kerry in the first three sequels : " Saw II " ( 2005 ) , " Saw III " ( 2006 ) , and " Saw IV " ( 2007 ) . The latter also featured guest actor Justin Louis . Meyer ' s other film credits include " The Storyteller " ( 2005 ) with Kim Darby and " Balancing the Books " ( 2008 ) with Ed Begley , Jr . In addition , she recently starred in the short film " VideoDome Rent - O - Rama " , along with Gregory Itzin . Her latest feature film was the 2010 horror - thriller " Piranha 3 - D " , in which she acted alongside ' s Christopher Lloyd . Meyer and Lloyd both received their roles in this film through casting director Alyssa Weisberg .