The franchise offers three new episodes this week.

On Monday at 10:00pm ET/PT, the team deals with an old nemesis in "Chip/Tuck":

A murder case involving extreme plastic surgery leads Horatio to Ron Saris, who is alive and seeking revenge on Julia.

Allison Liddi directed the CSI: Crime Scene Investigation episode "Organ Grinder", but this is her first time working on Miami. Brian Davidson has written 13 previous episodes of the show, including "Tipping Point" from earlier this season.

The following guest stars will appear in the episode:

• Elizabeth Berkley as Julia Winston
• Kim Coates as Ron Saris
• Christopher Redman as Michael Travers
• Wes Ramsey as Dave Benton
• David Lee Smith as Rick Stetler
• Paul Keeley as Dr. Ethan Reeger
• Paulina Olyszynski as Lauren Reeger
• Kevin Rahm as Dr. Sean Loftin
• James Patrick Stuart as Steven Corbett
• Amelia Heinle as Elizabeth Corbett
• Brooke Burns as Bonnie Galinetti
• Jake Thomas as Lucas Galinetti
• Marinda Kaha as Marika Dupont
• Steve Byers as Tyler Marr
• Kate French as Rita
• Bernardo Badillo as George

Elizabeth Berkley is back as Julia Winston, who was last seen in "Divorce Party". Ron Saris seemed doomed in the season seven premiere, "Resurrection", but Kim Coates returns in "Chip/Tuck". Christopher Redman and Wes Ramsey are reprising established recurring roles in the lab. David Lee Smith was last seen in "Down to the Wire". Paul Keeley appeared in the CSI: New York episode "Admissions". Kevin Rahm has been in both New York ("Fare Game") and CSI ("Built to Kill, Part 1" and "Built to Kill, Part 2"). James Patrick Stuart played Attorney Adam Matthews in eight episodes of CSI, most recently "Secrets & Flies".

CSI: New York tries to solve a case without a body in "The Past, Present and Murder", Wednesday at 10:00pm ET/PT:

When a man falls 52 stories to his death, and his body goes missing after it hits the ground, with no body to process, the CSIs must treat this strange development as a missing persons case.

David Von Ancken directed five previous episodes of New York, including "Personal Foul" from last season. Sam Humphrey has seven writing credits for the show, most recently for "Help". He co-wrote this episode with Daniele Nathanson, who also has seven writing credits for CSI: NY. Her latest episode was "Dead Inside".

The following actors will appear in guest-starring roles:

• Mykelti Williamson as Chief Brigham Sinclair
• Craig T. Nelson as Robert Dunbrook
• Thad Luckinbill as Connor Dunbrook
• Brian Oblak as Man/Agent Walsh
• Laurie Searle as Reporter #1
• Nicholas G Warnock as Reporter #2
• Ian Anthony Dale as Agent Ellis Park
• Leith Burke as Agent Johnson

Mykelti Williamson returns as Chief Brigham Sinclair, who was last seen in "Sex, Lies and Silicone". Craig T Nelson is making his second appearance as Robert Dunbrook, who first appeared in "The Party's Over". Brian Oblak and Leith Burke were first seen in "The Triangle". Thad Luckinbill was in the CSI episode "Bang-Bang".

Things are out of this world for CSI: Crime Scene Investigation on Thursday at 9:00pm ET/PT in "A Space Oddity":

When Hodges and Wendy run into each other at a science fiction convention for one of their favorite classic television shows, they end up investigating the murder of one of their beloved actors.

Battlestar Galactica's Michael Nankin directed the episode, which is a nod to the sci-fi series. The story was written by executive producer Naren Shankar, who has 39 writing credits for the show, including the 200th episode "Mascara". Former Battlestar writers David Weddle and Bradley Thompson penned the teleplay for "A Space Oddity", which is their third writing credit since becoming supervising producers on the show. Their last script was for "Kill Me if You Can".

"A Space Oddity" features the following guest stars:

• Archie Kao as Archie Johnson
• Jon Wellner as Henry Andrews
• Sheeri Rappaport as Mandy Webster
• Kate Vernon as Dr. Penelope Russell
• Jaime Ray Newman as Melinda Carver
• Liza Weil as Risa Varness
• Michael Welch as Steuben Lorenz
• Patrick Bristow as Lionel Rose
• Reg Rogers as Jonathan Danson
• Joshua Cox as Commander Artemis Bishop
• Judy Jean Berns as Mrs. Rose
• Ronald D. Moore as Ronald D. Moore
• Michelle Belegrin as Yeoman Malloy
• Karl Herlinger as William
• Bradford Tatum as Ensign Garth
• Randy Lowell as Collectibles Dealer
• Christine Scott Bennett as Yeoman Sally Malloy (1960)
• Matthew Willig as Gorth (1960)

Archie Kao, Jon Wellner and Sheeri Rappaport are reprising established recurring roles. Galactica actress Kate Vernon guest-stars, and she previously appeared in "Turn of the Screws" during CSI's fourth season. Jaime Ray Newman appeared in "After the Show", and Randy Lowell was in "Bully for You". Michael Welch has been in CSI ("Blood Lust") and Miami ("Permanent Vacation"). Bradford Tatum appeared in the Miami episode "And How Does That Make You Kill?"

"Chip/Tuck", "The Past, Present and Murder" and "A Space Oddity" begin airing April 13 on CBS.

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