|Writer||Corey Miller & Sunil Nayar|
|Original Airdate||May 9, 2005|
|Previous Episode: Recoil|
|Next Episode: Whacked|
"Vengeance" is the twenty-second episode of the Season Three.
When a former football star is murdered at a high school reunion, the CSIs must find the killer. Meanwhile Horatio discovers that Bob Keaton has been murdered and now he has to solve his murder but somebody else has already processed the crime scene.
- Megan Ward as Jennie Hale
- Dylan Neal as Patrick Hale
- Richard Speight, Jr. as Kevin Banks
- Jessica D. Stone as Krystal Sneed
- Katy Selverstone as Michelle Day
- Paul Fitzgerald as Dan Winslet
- Max Martini as Bob Keaton
- Holt McCallany as John Hagen
- Andre Royo as Julio Pena
- Marcus Patrick as Luis Rivera
- Lance Reddick as David Park
- Last appereance of Max Martini as Bob Kaeton.
- "What You Waiting For" by Gwen Stefani
- "She Drives Me Crazy" by Fine Young Canibals
- "Love Shack" by B-52s
- "Cold Hearted" by Paula Abdul
- "Mony Mony" by Billy Idol