A YOUNG WOMAN IS KILLED IN FRONT OF A MOVING BUS AND THE CSIs MUST FIND THE KILLER, ON "CSI: MIAMI," MONDAY, OCT. 4

Jonathan Togo ("Mystic River") Joins the Cast as Det. Ryan Wolfe

Jonathan Silverman ("The Single Guy") and Meredith Monroe ("Dawson's Creek") Guest Star

"Under the Influence" -- The CSIs must find the killer after a young woman is pushed in front of a moving bus, on CSI: MIAMI, Monday, Oct. 4 (10:00-11:00 PM, ET/PT) on the CBS Television Network. Scott Lautanen directed the episode written by Marc Dube and Corey Miller.

Jonathan Togo ("Mystic River") joins the cast as Det. Ryan Wolfe.

Alexx finds a bruise shaped like a hand imprint on the victim's back, proving that she was pushed in front of the bus, and her boyfriend, Jay Seaver (guest star Jonathan Silverman), is the prime suspect. When one of Jay's office rivals also turns up dead, Jay reveals that he has a psychotic stalker, Claudia (guest star Meredith Monroe), who he thinks and might kill to please him. However, when Jay hires a lawyer to protect Claudia, Horatio suspects that Jay may be more involved than they thought. Meanwhile, Calleigh's father seeks her help when he fears that he may have killed someone after a night of drinking, and Horatio assigns a new CSI, Ryan Wolfe (Togo), to the case.

Horatio Caine: David Caruso
Calleigh Duquesne: Emily Procter
Eric Delko: Adam Rodriguez
Alexx Woods: Khandi Alexander
Yelina Salas: Sofia Milos
Ryan Wolfe: Jonathan Togo
Katrina Hannagan: Amelia Cook
Pete: Jesse Head
Kenwall "Duke" Duquesne: John Heard
Det. Frank Tripp: Rex Linn
Jay Seaver: Jonathan Silverman
Tyler Jenson: Brian Poth
Travis Madison: Daniel Murray
Claudia Sanders: Meredith Monroe
Martin Perlman: Steven Meek
Larry Grill: Jack Kyle
Valera: Boti Bliss
Manager: Thomas Scott, II

RATING: To Be Announced