For the first time in over four months, CSI fans will be able to watch new episodes from all three CSI shows this week.

First up on Monday at 10:00pm is CSI: Miami's "Blood in the Water," which CBS described as follows:

When a rich family is trapped on a burning yacht in shark-infested waters, the CSIs must investigate how this happened. The daughter is killed during the tragedy, and as the CSIs investigate, they discover a web of lies within the family. Now, as the team delves into the world of outrageously wealthy yacht club members, they find that not everyone is who they appear to be. Meanwhile, Calleigh clashes with her replacement in the ballistics lab.

Below is a list of guest actors appearing in "Blood in the Water:"

• Patrick Fabian as Ken Gannon
• Francine Swift as Laura Gannon
• Corey Sevier as Luke Gannon
• Jennifer Holland as Julie Gannon
• Troy Curvey Jr. as Rex Hoby
• Brendan Fehr as Dan Cooper
• Nicholas DiNardo as Damon Loughlin
• Jordi Caballero as Julio Elias
• Anahi Bustillos as Tia Elias
• Joshua Leonard as Jim Markham
• Armando Valdes-Kennedy as Aaron Peters
• David DeSantos as Luis Cruz
• Boti Bliss as Valera
• Tom Schmid as Philip Reynolds
• Natalina Maggio as Onlooker/Rollerblader
• Rex Linn as Det. Frank Tripp
• Eva LaRue as Natalia Boa Vista

Of these actors, Brendan Fehr, Armando Valdes-Kennedy, and Boti Bliss are all playing previously established recurring characters, while Rex Linn and Eva LaRue are both now regulars, even if not yet part of the opening credits. Four other actors have previously appeared in one or more episodes in the CSI franchise: Patrick Fabian, who played Rhone Kinsey-Confer in the original CSI's "Forever;" Joshua Leonard, Matt Paulson in CSI: New York's "A Man A Mile;" Tom Schmid, who was a drunk guy only last week on the CSI: Crime Scene Investigation season premiere; and finally Natalina Maggio, who was a night club dancer in last week's "From The Grave," and will also be appearing as an extra in the first two episodes of CSI: New York this year.

On Wednesday at 10:00pm, CBS will finally be airing the CSI: New York season premiere, after first postponing the episode by a week in the wake of a speech by President Bush (story). Here's what you can expect from the episode, entitled "Summer in the City:"

The CSI's offices have relocated to a Manhattan high rise which includes new labs, a staff break room and new office equipment with state-of-the-art technology. Also, after expressing his interest in moving out of the coroner's office, Dr. Hawkes joins the team in the field and his first case has him working with Mac on the death of a skyscraper climber who plunged to his death while scaling the Empire State Building. Although hundreds of witnesses were on hand to see the climber fall, the team suspects foul play and believes someone may have caused his death -- and the key to the case may be the CSI's smallest witness ever -- a mosquito. Meanwhile, Stella and Danny investigate the murder of a New York fashion designer killed while wearing an eight million dollar diamond bra from his own collection.

The below actors will be making a guest appearance on this episode:

• Ron Yuan as Dr. Evan Zao
• David Julian Hirsh as Zack Shannon
• Alla Korot as Woman/Connie Williams
• Tom Schanley as Eli Bishop
• Jamie Elman as Adam Sorenson
• Pippi as Nicole Jordan
• Amy Stewart as Brenda Dillard
• Elizabeth Bennett as Regina Bowen
• Peter Dobson as Fred Becker
• Mark Alken as Whitman Price
• Chad Williams as D.J. Pratt
• Allen Lulu as Officer
• John Johnson as Fashion Photographer
• Gary Kasper as Bodyguard
• Greg D'Agostino as Uniformed Cop
• Natalina Maggio as Tennis Star

This will be the first episode featuring Ron Yuan, David Julian Hirsh and Greg D'Agostino, who will be recurring this season as the new CSI: NY coroner, a new lab tech, and a uniformed cop, respectively. There are also several actors who previously appeared in other roles on CSI. Tom Schanley played Adam Decker in the second-season CSI: Miami episode "Not Landing," while the unusually-named Pippi played the Red Rider in the third-season original CSI episode "Precious Metal." Two guest stars join the exclusive club of actors who have appeared on all three CSI shows with this episode: Peter Dobson, who was Anthony Haines in the third-season CSI: Crime Scene Investigation episode "A Night At The Movies" and Fred Rutter in the second-season CSI: Miami episode "The Oath;" and Chad Williams, who was Tim Coleman in the fourth-season original CSI episode "Dead Ringer" and Kevin Renfro in last season's CSI: Miami episode "Sex and Taxes." Finally, Allen Lulu played a stage manager in last year's CSI: Crime Scene Investigation episode "Ch-Ch-Changes."

This week's final new episode will be "Room Service," the second episode of CSI: Crime Scene Investigation's sixth season. Here's what you can expect from CBS on Thursday at 9:00pm:

The CSI team delves into the suspicious murder of an up and coming young movie star who is found dead after a night of partying in his hotel suite with his entourage of groupies. Meanwhile, downstairs at the same hotel, the team discovers that the immigrant kitchen workers may have turned against each other and committed murder.

Ken Fink, who helmed "Room Service," is a long-time CSI director, who most recently worked on last year's "Weeping Willows." The episode is credited to two writers: Dustin Lee Abraham, last year responsible for episodes such as "Big Middle" and "Snakes," and Henry Alonso Myers, a new producer on CSI. Previously, Myers worked for shows such as Charmed and The Chronicle.

Here's the list of guest stars for "Room Service:"

• David Berman as David Phillips
• Louise Lombard as Sophia Curtis
• Wallace Langham as Hodges
• Archie Kao as Archie Johnson
• Eric Winter as Julian
• Jeff D'Agostino as Blinky
• Kristin Richardson as Eva
• Chi Moui Lo as Samay
• Paul Statman as Cab Driver
• Silas Weir Mitchell as Willie
• Alona Tal as Tally
• Maite Schwartz as Kate
• Art Chudabala as Keo Vipraxay
• Larry Mitchell as Office Mitchell
• David Kagen as MTB Rep
• Kyle Davis as Clerk
• Tang Nguyen as Noy Vipraxay
• Paul Dillon as Joe Cavanaugh
• Tess Lina as Interpreter
• Jerry Weil as Attorney

David Berman, Louise Lombard, Wallace Langham, and Archie Kao will all be playing long-established recurring charactrs. Three other guest stars are already CSI alumni, including Jeff D'Agostino, who played Timmy 'Motor' Diehl in the first-season CSI: Miami episode "Camp Fear," and Paul Dillon, who was Owen Harrell in last year's CSI: Miami instalment "Pirated." Finally, Silas Weir Mitchell also joins the Three CSI Club with this episode, as he previously played Ralph Durst in the second-season Miami episode "Stalkerazzi," and David Scott in the CSI: New York episode "Crime and Misdemeanor."

It's still early in the season, so CBS does not yet have any holes in its schedule which it needs to plug with CSI reruns. However, on Saturday at 8:00pm, the network will be showing last year's CSI: Miami episode "Money Plane" in its Crimetime Saturday rotation. In this episode, someone uses a laser light to blind a pilot and bring down a jet, which carries over one billion dollars in checks to be delivered to banks on the eastern seaboard. The crime scene evidence reveals a victim, a young fundraising socialite, who was inside the plane but killed prior to the crash. Now, although the team has little to work with since the victim's wealthy family is opposing an autopsy, Horatio must follow the money trail. Meanwhile, Calleigh works on a case with her ex-boyfriend, Det. Hagen, and their romantic history could cause problems for both of them.

For the original press releases on all these episodes, please head over to the Futon Critic.

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