All 74 actors in both Riverdale and The Flash
74 actors have appeared in both Riverdale and The Flash, across 321 episodes. The most-credited is Barbara Wallace, Rose Blossom in Riverdale and Grandma Bates in The Flash.
| Actor | In Riverdale | In The Flash | Eps | Eps |
|---|---|---|---|---|
| Barbara Wallace | Rose Blossom | Grandma Bates | 52 | 1 |
| Peter Bryant | Principal Waldo Weatherbee | Fire Chief | 44 | 1 |
| Tony Todd | Farmer McGinty | Zoom | 1 | 14 |
| Andre Tricoteux | Small Fry Boucher | Savitar, Carl Bork | 1 | 11 |
| Peter Kelamis | Samm Pansky | Inspector Howard | 7 | 1 |
| Klarc Jerome Wilson | Officer Bradshaw | Officer Jones | 1 | 6 |
| William MacDonald | Principal Featherhead, Warden Norton | Gene Huskk | 19 | 1 |
| Alex Barima | Johnathan | College Boy | 12 | 1 |
| Andres Soto | Carlos | Marcus | 6 | 4 |
| Matty Finochio | Milkman, Quiz Show Host | Bruno Moretti | 5 | 1 |
| Scott McNeil | Tall Boy | Julius | 9 | 1 |
| Quinnie Vu | Agent Marsha Lin, Paramedic | Bank Teller | 6 | 1 |
| Nickolas Baric | Henchman #1 | Security Guard #1, Thug #2 | 1 | 3 |
| Jeremy Schuetze | Man in Car | Rob | 1 | 2 |
| Marcus Aurelio | Townsfolk #1 | Guard #1 | 1 | 1 |
| Oliver Rice | Lou Cypher | Erik Frye | 3 | 1 |
| Reese Alexander | Myles McCoy | Museum Guard, Prison Guard #2 | 3 | 2 |
| Samantha Spear | Deputy Henderson | Terrified Civilian 2 | 4 | 1 |
| Birkett Turton | David | Eddie Slick / Sand Demon | 3 | 1 |
| Christiaan Westerveld | Slender Man | Mugger | 1 | 3 |
| Dan Ginnane | Jay | Bank Robber #2 | 3 | 1 |
| Jason Bell | Mr. Conway | Cop #2, Goon #1 | 1 | 3 |
| Seth Ranaweera | Mo | Co-Worker #1 | 2 | 1 |
| Catherine Lough Haggquist | Mrs. Tate | Vickie Bolen | 1 | 1 |
| Doug Chapman | Trash Bag Killer, Dennis | City Worker #1 | 3 | 1 |
| Paul Anthony | Trevor Collins | Ray Bivolo | 1 | 3 |
| Sean Owen Roberts | Edgy Gangster | Clay Stanley | 1 | 1 |
| Fred Henderson | Governor Dooley | Coroner | 3 | 2 |
| Harrison MacDonald | Cassidy Bullick | Mold Inspector Rogen | 2 | 1 |
| Gardiner Millar | General Taylor | Tony Rawlins | 3 | 1 |
| Mark Brandon | Xavier St. Clair | Richard Dearbon | 2 | 2 |
| Beau Daniels | Male Alumni | Elderly Orloff, Priest | 1 | 2 |
| Kheon Clarke | T Dub | Cop | 2 | 1 |
| Valerie McNicol | Real Estate Agent | Caretaker | 2 | 1 |
| Paul Lazenby | Manager, Inmate #1 | Tech Thief #2 | 3 | 1 |
| Peter New | Bobby | Wdgick | 3 | 1 |
| Andre Roshkov | Russian Assassin Anatol | Pilot | 2 | 1 |
| Kendall Cross | Ranger | Mayor Van Buren | 1 | 2 |
| Adrian Neblett | Mr. Barry | Shotgun SWAT | 1 | 1 |
| Donna Soares | Mrs. Mantle | Judge Tanaka | 1 | 1 |
| Jenn MacLean-Angus | Mrs. Muggs | Surgeon | 3 | 1 |
| Michael St. John Smith | Coach Kleats | Harbor Police Chief | 3 | 1 |
| Alessandro Miro | Mario | Thief #2 | 1 | 1 |
| Andy Thompson | Funeral Director | Dr. Bruce Bonwitt | 1 | 1 |
| Carmela Sison | Agent #1 | Nurse Beth | 1 | 1 |
| Christopher Rosamond | Mustang | Thug #1 | 2 | 1 |
| Mike Mitchell | Henchman #2 | Security Guard | 1 | 1 |
| Paul Herbert | Homeless Man | Director Hackshaw | 1 | 2 |
| Paul Jarrett | Arthur "Artie" Andrews | General Matthew McNally | 1 | 1 |
| Peter Brown | Floor Manager | McKay | 1 | 1 |
| Megan Peta Hill | Cora Carter | Wanda Wayland / Ten | 1 | 2 |
| Simon C. Hussey | Major Marcus Mason | Security Guard #1 | 2 | 1 |
| Tyson Arner | Gargoyle Leader | Emerson Fairweather | 2 | 1 |
| Chris Shields | Mr. Logan | John Bolen | 1 | 1 |
| James Yi | Brotherhood Member #2 | Lead Scientist | 1 | 1 |
| Michael Taylor | RROTC Cadet | Kevin | 1 | 1 |
| Brittany Palmer | Floor Manager | Police Officer #2 | 1 | 1 |
| Carlo Fortin | Stu | FBI Agent | 1 | 1 |
| Kareem Malcolm | Preppy Buyer | Male Uni | 1 | 1 |
| Darcy Hinds | Randy Ronson | McCulloch Guard | 2 | 1 |
| Eli Gabay | Lenny Kowalski | Fire Chief | 2 | 1 |
| Ese Atawo | Dr. Starling | Detective Frankie Curtis | 1 | 1 |
| Lisa Chandler | Mrs. Conway | Hazmat Woman | 1 | 1 |
| Aliza Vellani | Mrs. Haggly | Sheila Agnani | 1 | 1 |
| Angela Vanderwal | Appraiser | Heckler | 1 | 1 |
| Jason William Day | Inmate #2 | SWAT #2 | 1 | 1 |
| Jerry Wasserman | Mr. Lazenby | President of the U.S.A. | 1 | 1 |
| Patrick Keating | Willie | Older Man | 1 | 1 |
| Teana-Marie Smith | Mail Clerk | Dr. Lockett | 2 | 1 |
| Juliana Parreira | Stripper #2 | Pole Dancer | 1 | 1 |
| Mike Veal | Prison Guard | IHP Guard #2 | 1 | 1 |
| Sean Millington | Hammer | Prison Gang Leader | 1 | 1 |
| Devin Pihlainen | Tailor | Cute Guy | 1 | 1 |
| Jaren Moore | Customer | Plumber | 1 | 1 |
Cast data from TVmaze, licensed CC BY-SA 4.0.