All 115 actors in both CSI: Crime Scene Investigation and How I Met Your Mother
115 actors have appeared in both CSI: Crime Scene Investigation and How I Met Your Mother, across 545 episodes. The most-credited is Lyndsy Fonseca, Megan Cooper in CSI: Crime Scene Investigation and Daughter in How I Met Your Mother.
| Actor | In CSI: Crime Scene Investigation | In How I Met Your Mother | Eps | Eps |
|---|---|---|---|---|
| Lyndsy Fonseca | Megan Cooper | Daughter | 1 | 48 |
| Joe Nieves | Javier Lileez | Carl | 1 | 21 |
| Ashley Williams | Debbie Hicks | Victoria | 1 | 14 |
| Joe Manganiello | Tom Parker | Brad Morris | 1 | 7 |
| Bryan Callen | Bartender Barry Yoder, Jack Oxford | Bilson | 2 | 5 |
| Ray Wise | Ernest Chase | Robin Sr | 1 | 5 |
| Roger Bart | Jeffrey Fitzgerald | Curtis | 1 | 5 |
| Monique Edwards | Nurse Nanette Faber | Producer | 1 | 4 |
| Nazanin Boniadi | Nurse Lauren | Nora | 1 | 8 |
| Michael Gross | President Rob Austin | Alfred Mosby | 1 | 3 |
| Michael Trucco | Fred Dax | Nick Petteruti, Crush | 1 | 7 |
| Cristine Rose | Grandma Giles | Virginia Mosby | 1 | 6 |
| Mark Derwin | James Mandelbaum, Braun's Lawyer | Greg | 3 | 2 |
| Meredith Scott Lynn | Carol Allred | Phyllis | 4 | 1 |
| April Bowlby | Kaitlin Rackish, Sally | Crazy Meg | 2 | 4 |
| Dan Lauria | Det. Jameson | Nolan | 1 | 1 |
| Harry Groener | Peyton Tallman | Clint | 1 | 3 |
| K Callan | Martha James | Grandma Lois | 1 | 3 |
| Nicole Garza | Jill | Jenny | 1 | 1 |
| Rachelle Lefevre | Kumari | Sarah | 1 | 1 |
| Virginia Williams | Claudia Mason | Claudia | 1 | 5 |
| Brooke Nevin | Maya Russell | Amanda | 4 | 1 |
| Amy Acker | Sandy Colfax, Sandy Larken | Penelope | 2 | 1 |
| Gary Anthony Williams | Police Impound Driver | Inspector, Reginald | 1 | 2 |
| John Getz | Bill Harvey, Richard Zeigler | Bob Hewitt | 2 | 1 |
| Peter Breitmayer | Clayton Ferris, Ed | Minnesota State Trooper | 2 | 1 |
| Rebecca Budig | Joanna "Candy" Krumsky | Holly | 2 | 1 |
| Riley Thomas Stewart | Kevin Fetzer | Young Barney | 1 | 3 |
| Greg Collins | Officer Arvington | Matt Zinman | 4 | 1 |
| Alexis Krause | Rachel Walker | Carol | 1 | 1 |
| Caroline Lagerfelt | Marjorie Randell | Bridal Shop Lady | 1 | 1 |
| Dawn Olivieri | Stripper | Anna | 1 | 2 |
| Deanna Russo | Lori Kyman | Brooke Bartholomay | 1 | 1 |
| Italia Ricci | Vanessa Drake | Hot Woman #1 | 1 | 1 |
| Jay Acovone | Tommy Grazetti | Vance | 1 | 1 |
| Josh Wingate | Clay Miller | Mike, Richard Whartonike | 1 | 2 |
| Julianna Guill | Monica | Maiden | 1 | 1 |
| Malea Mitchell | Crystal | Chrissy | 1 | 1 |
| Meagen Fay | Rochelle Dorley | Janice Aldrin | 1 | 2 |
| Nikki Tuazon | Dancer #6 | Hot Girl | 1 | 1 |
| Regan Burns | James Billmeyer | Producer | 1 | 1 |
| Todd Stashwick | Mark Bunin | Steve | 1 | 1 |
| Tug Coker | Seth Helm | Bud | 1 | 1 |
| Will Sasso | Mason Lafoon | Doug Martin | 1 | 2 |
| Eric Allan Kramer | Deputy Sheriff, Vic Patterson | Rorschach | 2 | 1 |
| Larry Poindexter | D.A. Claude Melvoy | Joe Donovan | 2 | 1 |
| Paul Schackman | Bob Martin | Dr. Mitchell Friedman | 1 | 2 |
| Peter MacKenzie | Dr. Eisling | Mr Horvath | 2 | 1 |
| Todd Sandler | Probation Officer | Darryl, Strip Club patron | 1 | 2 |
| Abigail Spencer | Becky Lester | BlahBlah | 1 | 1 |
| Erinn Bartlett | Woman at Elevator | Mary | 1 | 1 |
| Frank Clem | Caleb Carson | Hick | 1 | 1 |
| Jason Priestley | Jack Witten | Jason Priestley | 1 | 1 |
| Kevin Christy | Witness | Sven #1 | 1 | 1 |
| Lindsay Price | Ms. Marita | Cathy | 1 | 1 |
| Robb Derringer | Victor's Partner | Derrick | 1 | 1 |
| Scoot McNairy | Vitas Long | Fast Food Worker | 1 | 1 |
| Sheldon Coolman | Dennis Hagel | Shop Owner | 1 | 1 |
| Tina Casciani | Jessica Fenton | Marisela Diaz | 1 | 1 |
| Ambrit Millhouse | Jury Foreperson, Officer Collins | Jill | 2 | 1 |
| Tom Virtue | Doctor, George | Minister | 2 | 1 |
| Aaron Hill | Carter Grable | The Frozen Snowshoe | 1 | 1 |
| Brad Rowe | Mark Kyman | George | 1 | 1 |
| Christiann Castellanos | Brenda | Leigh | 1 | 1 |
| Christine Scott Bennett | Yeoman Sally Malloy | Tracey | 1 | 1 |
| Connie Sawyer | Old Lady | Old Lady | 1 | 1 |
| Diane Salinger | Hilda Morton | Dr.Birnholz-Vazquez | 1 | 1 |
| Edward Herrmann | Albert Vogel | Reverend Lowell | 1 | 1 |
| Emily Baldoni | Pam Harris | Claudette | 1 | 1 |
| Floriana Lima | Keri Torres | Haley | 1 | 1 |
| Jason Lewis | Craig Hess | Movie Tony | 1 | 1 |
| Jason Lopez | Jason Crewes | Floppy-Haired Guy | 1 | 1 |
| Jessica Barth | Justine Stefani | Church Girl | 1 | 1 |
| Katie Gill | Caroline Fitzgibbons | Erika | 1 | 1 |
| Maggie Wheeler | Female Comic | Margaret | 1 | 1 |
| Pat Crawford Brown | Female Dental Patient | Thelma | 1 | 1 |
| Arielle Vandenberg | Party Girl | Mary | 1 | 1 |
| Danneel Ackles | Shasta McCloud | Nora Zinman | 1 | 1 |
| Elizabeth Bogush | Eddie | Amanda | 1 | 1 |
| Heidi Lynne Herschbach | April Kissimee | April | 1 | 1 |
| Liz Nicole Abrams | Hooker #1 | Random Girl | 1 | 1 |
| Maite Schwartz | Kate | Holly | 1 | 1 |
| Melissa Tang | Erin Nagano | Amanda | 1 | 1 |
| Michael C. Alexander | Jury Foreman | Intervention Leader | 1 | 1 |
| Michael Earl Reid | Gambler Rufus Sanders | Postmaster General | 1 | 1 |
| Van Epperson | Judge | Shop Owner | 1 | 1 |
| Brooke Newton | Sabrina Littee | Christy | 1 | 1 |
| Corie Vickers | Flight Attendant | Cousin Margaret | 1 | 1 |
| Hong Chau | Julie Blanch | Cook Pu | 1 | 1 |
| John Rosenfeld | Child Advocate | Guy | 1 | 1 |
| Katrina Norman | Dancer #2 | Tribe Leader | 1 | 1 |
| Nate Torrence | Daniel O'Hannissey | Butterfield | 1 | 1 |
| Neil Jackson | Michael Bowie | Ian | 1 | 1 |
| Tamara Camille | Lanetta | Woman | 1 | 1 |
| Yves Bright | Rob Rios | Patrice | 1 | 1 |
| Camille Guaty | April Martin | Lisa | 1 | 1 |
| Mark Tomesek | Mr. Vollmer | Dr. Goodman | 1 | 1 |
| Michael Edwin | Oddsmaker #1 | Eddie | 1 | 1 |
| Michael Mantell | Dr. Stevens | Ben | 1 | 1 |
| Roz Witt | Blue Hair | Mom | 1 | 1 |
| Steve Seagren | Middle-Aged Detective | Bailiff | 1 | 1 |
| Hallie Lambert | Dispatch Cop, Susie Spiegel | Kate | 2 | 1 |
| Jeremy Glazer | David Winnock | Bruce | 1 | 1 |
| Katy Stoll | Carrie Warren | Lizbeth | 1 | 1 |
| Kyle S. More | Violet | Hipster Dude | 1 | 1 |
| Sonia Rockwell | Shelley Jackman | Sadie | 1 | 1 |
| Tahmus Rounds | Manager | Guitar Mom | 1 | 1 |
| Thomas Crawford | Janitor | Wedding Guest #1 | 1 | 1 |
| Kathleen M. Darcy | Nice Lady on Tour | Wedding Guest #2 | 1 | 1 |
| Marianne Muellerleile | Dolores Rinaldi | Meredith | 1 | 1 |
| Ping Wu | Coroner | Old Man | 1 | 1 |
| Richard Wharton | Kenny Valdez | Art Professor | 1 | 1 |
| Tom Ayers | Liquor Store Clerk | Walter | 1 | 1 |
| Cynthia Murell | Bunny Nierman | Gorgeous Woman | 1 | 1 |
| Tess Alexandra Parker | Antoinette- Baby Girl | Mysterious Woman | 1 | 1 |
← CSI: Crime Scene Investigation × How I Met Your Mother
Cast data from TVmaze, licensed CC BY-SA 4.0.