All 123 actors in both CSI: Crime Scene Investigation and Frasier
123 actors have appeared in both CSI: Crime Scene Investigation and Frasier, across 601 episodes. The most-credited is Marc Vann, Conrad Ecklie in CSI: Crime Scene Investigation and Paul in Frasier.
| Actor | In CSI: Crime Scene Investigation | In Frasier | Eps | Eps |
|---|---|---|---|---|
| Marc Vann | Conrad Ecklie | Paul | 67 | 1 |
| Patrick Kerr | Gregory Kimble | Noel Shempsky | 1 | 20 |
| Harriet Sansom Harris | Eva | Bebe Glazer | 1 | 11 |
| Jane Adams | Belinda Goff | Dr. Mel Karnofsky | 1 | 11 |
| Wendie Malick | Donna Eiger | Ronee Lawrence | 1 | 10 |
| Anthony LaPaglia | Jack Malone | Simon Moon | 1 | 8 |
| Eric Roberts | Brother Daniel Larson | Chet | 3 | 1 |
| Lindsay Frost | Marjorie Wescott | Samantha "Sam" Pierce | 1 | 3 |
| Lisa Darr | Gwen Anderson, Nicole Jones | Laura Paris | 2 | 2 |
| Marg Helgenberger | Catherine Willows | Emily | 3 | 1 |
| Ron Dean | Woody | Frank | 1 | 3 |
| Brian Klugman | P.J. Turner | Kirby | 1 | 6 |
| Judith Scott | Dr. Jenna Williams | Colleen | 6 | 1 |
| Bess Armstrong | Patricia Lydecker | Kelly Kirkland | 1 | 2 |
| John Rubinstein | Judge Crawford, Priest | Philip Hayson | 2 | 1 |
| Lindsay Crouse | Mona Lavalle | Peg | 1 | 2 |
| Tushka Bergen | Samantha Dean | Miranda Rogers | 1 | 2 |
| Gigi Rice | Terri Durbin, Yvette Baker | Regan Shaw | 2 | 3 |
| Wayne Wilderson | Paramedic Edwin Kelso | Teddy | 6 | 1 |
| Charlotte Ross | Sabrina Owen | Monica | 1 | 1 |
| Gary Sinise | Mac Taylor | Sid | 1 | 1 |
| Hal Sparks | Digger James | Receptionist | 1 | 1 |
| John Michael Higgins | Anthony Caprice | William | 1 | 1 |
| Pauley Perrette | Candeece | Waitress | 1 | 3 |
| Rick Cramer | Captain Mike Wilson | Ranger | 1 | 1 |
| Tom Irwin | Roy Logan | Frank | 1 | 1 |
| Valarie Pettiford | Susan Sue Latham | P.R. Women | 1 | 1 |
| Željko Ivanek | Melton | Dr. Arnold Shaw | 1 | 1 |
| Anita Gillette | Lily Flynn | Mrs. Wojadubakowski | 4 | 1 |
| James Patrick Stuart | Adam Matthews | Guy | 4 | 1 |
| Timothy Carhart | Eddie Willows | Mr. Grant | 4 | 1 |
| Bryan Callen | Bartender Barry Yoder, Jack Oxford | The Chicken | 2 | 1 |
| Jeff Perry | George Stark, Vince Grady | John Mitchell | 2 | 1 |
| Lisa Waltz | Jean Kingsley | Tricia | 1 | 2 |
| Michael Welch | Steuben Lorenz, Todd Branson | Young Niles | 2 | 1 |
| Suzanne Cryer | Dr. Jennifer Grier | Denise Dawson | 1 | 2 |
| Lorraine Toussaint | Marla James, Cynthia James | Nurse | 3 | 1 |
| Alan Tudyk | Carl Fisher | Todd Peterson | 1 | 1 |
| Alyson Reed | Doris, Mrs. Devereaux | Cindy Carruthers | 2 | 1 |
| Blake Lindsley | Charlotte Summerville, Jessica Lovett | Becky | 2 | 1 |
| Carlos Jacott | Dr. Garner | Matt | 1 | 1 |
| Caroline Aaron | Mrs. Steiner | Phyllis Conrad | 1 | 1 |
| Christina Cindrich | Cocktail Waitress | The Cable Woman | 1 | 1 |
| Dale Dickey | Waitress | Mrs. Grant | 1 | 1 |
| Don McManus | Ed Burrows, Francis Lavalle | Donald | 2 | 1 |
| Gina Ravera | Dr. Paula O'Keefe | Waitress | 1 | 1 |
| Glenne Headly | Viviana Conway aka Madame Marvelous | Gretchen | 1 | 1 |
| Illeana Douglas | Ruby Banks | Kenny's Wife | 1 | 1 |
| Jennifer Tilly | Terpsie Pratt | Kim | 1 | 1 |
| Joe Howard | Logan Martin | Ticket Seller | 1 | 1 |
| John Carroll Lynch | Buddy "Pal" Arnold | Franklin | 1 | 1 |
| Kevin Weisman | Craig Higgins | Painter | 1 | 1 |
| Krista Allen | Kristy Hopkins | Liz Wright | 3 | 1 |
| Lamont Thompson | SWAT Officer | Delivery Man | 1 | 1 |
| Lisa Thornhill | Chloe Daniels | Caroline | 1 | 2 |
| Lombardo Boyar | Jesse Commons | Delivery Man | 1 | 1 |
| Mark Deklin | Ryan Miller | Clint | 1 | 1 |
| Matt Roth | Sam Cooper | Ted | 1 | 1 |
| Mike Starr | Dominic Bruno | Billy Kriezel | 1 | 1 |
| Scott Michael Campbell | Union Soldier | Mr. Rugley | 1 | 1 |
| Stephen Root | Michael Kirkwood | Harbin | 1 | 1 |
| Tom Lagleder | Firefighter | Dr. Stephen Kagen | 1 | 1 |
| Tricia O'Kelley | Debbie Dunbar | Colette | 1 | 1 |
| Valerie Dillman | Rebecca Sutter | Mary Ann | 1 | 1 |
| Wolfgang Puck | Wolfgang Puck | Tom, Wolfgang Puck | 1 | 2 |
| Tom Beyer | L. Collins | Singer | 2 | 1 |
| Annie Wersching | Dr. Prescott | Esthetician | 1 | 1 |
| Faith Prince | Lynn Stagner | Brandy | 1 | 1 |
| Hope Allen | Jenna | Maxine | 1 | 1 |
| Jack Wallace | Tony Mumms | Joe | 1 | 1 |
| Joan McMurtrey | Mrs. Marlowe | Heather | 1 | 1 |
| John Ratzenberger | Stu Kirchoff | Cliff Clavin | 1 | 1 |
| Lindsay Price | Ms. Marita | Sharon | 1 | 1 |
| Marco Rodríguez | Carlos' Lawyer | Leo | 1 | 1 |
| Miguel Pérez | Eduardo Maytorena | Carlos Del Gato | 1 | 1 |
| Nana Visitor | Mrs. Garbett Katz | Sharon | 1 | 1 |
| Peter Asle Holden | Augie Heitz | Steven | 1 | 1 |
| Timothy Omundson | Producer | Director | 1 | 1 |
| Vaughn Armstrong | Dr. Dennis Keil | Tony | 1 | 1 |
| Jay Karnes | I.A. Detective Schultz, IA Officer Wagenbach | Corporate Guy | 2 | 1 |
| Rocky McMurray | Construction Worker, Surveillance Director | Shangri-lino | 2 | 1 |
| Stephon Fuller | Gas Station Attendant | Jason | 1 | 2 |
| Beth Littleford | Nurse Mona | Creationism Date | 1 | 1 |
| Cameron Dye | Leland Brooks | Nigel Moon | 1 | 2 |
| Caroline Lagerfelt | Marjorie Randell | Glinka | 1 | 1 |
| Chris Diamantopoulos | Oliver Zarco | Steve | 1 | 1 |
| David Burke | Don Cook | Sean | 1 | 1 |
| Edward Edwards | Mr. Darwell | Richard | 1 | 1 |
| John Kapelos | Duke Rittle | Policeman | 1 | 1 |
| Joseph Kell | Peter Fram | Doctor | 1 | 1 |
| Lisa K. Wyatt | Ranger Stone | Sonics Fan | 1 | 1 |
| Paul Schulze | Surgeon | Alex | 1 | 1 |
| Philip Casnoff | Jonah Clyborn | Dr. Bernard Gadston | 1 | 1 |
| Ron Canada | Jerry Barone | Judge Anderson | 1 | 1 |
| Scott Lowell | Gavin Pearson | Chuck | 1 | 1 |
| Sean Smith | Ted Goggle | Chip | 1 | 1 |
| Simon Brooke | Inmate #1 | Bartender | 1 | 1 |
| Skye McCole Bartusiak | Susan Lester | Giorl with Drawing | 1 | 1 |
| Taylor Handley | Max Newman | Trent | 1 | 1 |
| Tony Crane | Officer Joe Tyner | Mike | 1 | 1 |
| John Prosky | ADA Vanderpool | Preston | 1 | 1 |
| Jonathan Fraser | Kevin Shepherd | Man at Party | 1 | 1 |
| Lilyan Chauvin | Mrs. Aloyna Ivanovna | Mama | 1 | 1 |
| Loren Lazerine | Alex James | Fan | 1 | 1 |
| Michael Des Barres | Marty "The Cat" Kirch | Georges | 1 | 1 |
| Patrick Breen | Mr. Phillipe | Phillip | 1 | 1 |
| Susan Merson | Juror #1 | Woman in Cafe | 1 | 1 |
| Adrian R'Mante | Paramedic Rivera | Servant | 2 | 1 |
| Candace Edwards | Medical Examiner | Monique | 1 | 1 |
| Dennis Cockrum | Roger Edmonds | Red | 1 | 1 |
| James Kiriyama-Lem | Witness #1 | Tenant | 1 | 1 |
| John O'Leary | Cranky Old Man | Old Niles | 1 | 1 |
| Joseph Will | Walt Braun | Nikos Crane | 1 | 1 |
| Ray Porter | Carl Van Goe | Dwayne | 1 | 1 |
| Twink Caplan | Bus Driver | Bridget | 1 | 1 |
| Valerie Mahaffey | Dora Pomerantz | Peggy | 1 | 1 |
| Carla Renata | Devine | Louise | 1 | 1 |
| Damara Reilly | Lita Gibbons | Estelle | 1 | 1 |
| Googy Gress | Cabbie | Ned | 1 | 1 |
| Steve Lawrence | Mitch Urbana | Howard | 1 | 1 |
| Kendall Clement | Sergeant Crawford | Plumber | 1 | 1 |
| T.R. Knight | Zero Adams | Alex | 1 | 1 |
| Nate Bynum | Black Media | Bank Guard | 1 | 1 |
← CSI: Crime Scene Investigation × Frasier
Cast data from TVmaze, licensed CC BY-SA 4.0.