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Assume Nothing
Assume Nothing
WriterDanny Cannon,
Anthony E. Zuiker
DirectorRichard J. Lewis
Original AirdateSeptember 25, 2003
Previous Episode: Inside the Box
Next Episode: All For Our Country

Assume Nothing is the first episode in season four of CSI: Crime Scene Investigation.


When a couple is murdered after meeting another couple in a bar, Grissom and his team suspect it is the work of a pair of serial killers. Nick jeopardizes the case when he gives an old friend some information on the case and it later turns up on the local news.


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Main Cast

Guest Cast

  • Archie Kao as Archie Johnson
  • David Berman as David Phillips
  • Scott Wilson as Sam Braun
  • Romy Rosemont as Jacqui Franco
  • Terry Bozeman as Attorney Brad Lewis
  • Paula Francis as News Anchor
  • John Doman as Judge Slater
  • Rudolf Martin as Cameron Klinefeld
  • Brian Bloom as Kent Rifkin
  • Nichole Hiltz as Natasha Rifkin
  • John Kassir as Hotel Guest
  • Moon Bloodgood as Stripper
  • Josh Holloway as Kenny Richmond
  • Scott Alan Smith as Stuart Gardner
  • Michael Azria as California Kid
  • Lydia Blanco as Maid
  • Garcia-Hyde Sue-Ling as Alice Dominguez
  • Sandra Hess as Mandy Klinefeld
  • Jim Jenkins as Reporter #1
  • Brandon Kirsch as Officer Almada
  • Michael Lopez as Checco Dominguez
  • Maureen Muldoon as Reporter Lynda Darby
  • Breck Wilson as Fred Laggerman
  • Melanie H. Gassaway as Wendy Laggerman (uncredited)
  • Mikos Zavros as Valet (uncredited)

Featured Music

  • Breakbeat Suckers by Cirrus.
  • Dragon Lounge by Cirrus.
  • Truth or Dare by N.E.R.D.

See Also

< Inside the Box (season 3)
CSI:Las Vegas Season 4
Assume NothingAll For Our CountryHomebodiesFeeling the HeatFur and LoathingJackpotInvisible EvidenceAfter the ShowGrissom Versus the VolcanoComing of RageEleven Angry JurorsButterfliedSuckersPaper or PlasticEarly RolloutGetting OffXXBad To The BoneBad WordsDead RingerTurn of the ScrewsNo More BetsBloodlines