All 91 actors in both Doctor Who and Silent Witness
91 actors have appeared in both Doctor Who and Silent Witness, across 421 episodes. The most-credited is Jemma Redgrave, Kate Stewart in Doctor Who and D.I. Jill Raymond in Silent Witness.
| Actor | In Doctor Who | In Silent Witness | Eps | Eps |
|---|---|---|---|---|
| Jemma Redgrave | Kate Stewart | D.I. Jill Raymond | 7 | 5 |
| Adjoa Andoh | Francine Jones, Sister Jatt | D.I. Nina Rosen | 8 | 2 |
| Matthew Gravelle | Voice of Kerblam | Tom Faulkner | 1 | 6 |
| Kevin McNally | Professor Eustacius Jericho | Professor Peter Cherry | 3 | 2 |
| Struan Rodger | The Face of Boe, Clayton, Kasaavin | Mike Liston | 4 | 1 |
| Edmond Moulton | Adam | Young Luke | 1 | 3 |
| Jeanie Gold | Neighbour | Gypsy | 2 | 2 |
| Mark Bonnar | Jimmy | Piers Christie | 2 | 2 |
| Richard Dillane | Carter | DCI Michael Waite | 2 | 2 |
| Hugh Quarshie | Solomon | Jomo Moshaba | 2 | 5 |
| Adam Rayner | Roger Curbishley | Gary Booth | 1 | 2 |
| Ashley Walters | Gregor Van Baalen | DI Carter | 1 | 2 |
| Christina Cole | Lilith | Janice Masters | 1 | 2 |
| Nigel Terry | Cobb | Jim Thorn | 1 | 2 |
| Shaun Dingwall | Pete Tyler (Parallel Universe), Pete Tyler | Adam Lansley | 4 | 2 |
| Tamzin Outhwaite | Captain | Sally Alden | 1 | 2 |
| Clare Higgins | Ohila | D.S. Farmer, Professor Katherine Dukes | 2 | 5 |
| Ingrid Oliver | Petronella Osgood | D.I. Briggs | 3 | 1 |
| Julie Graham | Ravio | Elinor Shaw | 2 | 2 |
| Morven Christie | Alice O'Donnell | DS Sally Kirchner | 2 | 2 |
| Shaun Parkes | Zachary Cross Flane | Bennett Walker | 2 | 2 |
| Steve Oram | Joseph Williamson | Tony Jenkins | 5 | 2 |
| Amit Shah | Rahul | Dr. Rhavi Dhillon | 1 | 2 |
| Amy Booth-Steel | Hyph3n | PC Greenwood | 1 | 2 |
| Anamaria Marinca | Darla | Eva | 1 | 2 |
| Andrew Tiernan | Jim Purcell | DCI John McLeod | 1 | 2 |
| Dean Lennox Kelly | William Shakespeare | Carmichael | 1 | 2 |
| Derek Riddell | Sir Robert | Michael Trenter | 1 | 2 |
| Ellie Haddington | Professor Docherty | Meg McGrath | 1 | 2 |
| Hermione Norris | Lundvik | CS Sheila Court | 1 | 2 |
| Jason Watkins | Mr Webley | Stan Hughes | 1 | 2 |
| Kevin Eldon | Ribbons | DI Dan Mason | 1 | 2 |
| Sophia Myles | Reinette | Laine Cassidy | 1 | 2 |
| Tobias Menzies | Lieutenant Stepashin | Greg Walker | 1 | 2 |
| Tony Gardner | Douglas | Ron Hill | 1 | 2 |
| Annette Badland | Margaret Blaine | Linda Fletcher | 3 | 1 |
| Darren Morfitt | Marco | DCI Andy Steemson | 2 | 2 |
| Vinette Robinson | Abi Lerner, Rosa Parks | DI Fiona Mahler | 2 | 2 |
| Nadia Albina | Diane | Emma Caulfield | 4 | 1 |
| Adrian Rawlins | Dr. Ryder | DI John Leighton | 1 | 2 |
| Amanda Drew | Mouri | DI Reid | 1 | 2 |
| Ariyon Bakare | Leandro | Father Anthony Dawes | 1 | 1 |
| Asif Khan | Sergeant Ramesh Sunder | Ramesh Patel | 2 | 2 |
| Nikkita Chadha | Hologram Singer | Parveen Singh | 1 | 2 |
| Sanjeev Bhaskar | Colonel Ahmed | Abdul Aziz | 1 | 2 |
| Steve Toussaint | Feekat | Richard Parkwood | 1 | 2 |
| Suzanne Packer | Eve Cicero | Miriam Harper | 1 | 2 |
| Tom Goodman-Hill | Reverend Arnold Golightly | AC Tim Holloway | 1 | 1 |
| Raji James | Dr. Rajesh Singh | Kamal Rachid | 2 | 2 |
| Ben Bailey Smith | Durkas Cicero | Lieutenant Colonel Ben Carmichael | 1 | 2 |
| Chris Anderson | The Chorister | Oliver Meehan | 1 | 2 |
| Ellen Thomas | Clockwork Woman | Esther Daniels | 1 | 2 |
| Emma Cunniffe | Claire | Jess Fisher | 1 | 2 |
| Gerald Kyd | General Logan | Yusef Hamed | 1 | 2 |
| Robert Pugh | Tony Mack | Robert Wilde | 2 | 1 |
| William Ash | Riley Vashtee | Major Mark Sealy | 1 | 2 |
| Joseph Long | Rocco Colasanto, The Pope | Gino, Costas | 2 | 3 |
| Phil Davis | Lucius Dextrus | Mick Ramsden | 1 | 1 |
| Zaqi Ismail | Tim Lunn | Harry Singh | 2 | 2 |
| Colin Salmon | Dr. Moon | Sebastian Bird | 2 | 1 |
| Davood Ghadami | Jim | Ali Kolahi | 1 | 2 |
| Molly Harris | Suki Cheng | May Lwin | 1 | 2 |
| Neil Stuke | Lee Clayton | DI Laurence Cooke | 1 | 2 |
| David Verrey | Joseph Green | Bruce Morgan-Jones | 2 | 2 |
| Paul Marc Davis | Chieftain, King Sandman | Benjamin | 2 | 2 |
| Sean Gallagher | Chip | DI John Brooke, Daniel Finn | 1 | 3 |
| Akin Gazi | Carter | Bekir Humadi | 1 | 2 |
| Art Malik | Ilin | Arthur Pujari | 1 | 1 |
| George Russo | Phillip | Mark Bond | 1 | 2 |
| Robert Whitelock | Mahler | Oliver Bright | 1 | 2 |
| Rupert Holliday-Evans | Colonel Mace | Russell Drake | 2 | 2 |
| Kelly Hunter | Shadow Architect | Ronnie Crew | 2 | 2 |
| Clive Wood | Commander | Paul Simmons | 1 | 2 |
| Ayesha Dharker | Solana Mercurio | Professor Asha Banerjee | 1 | 1 |
| David Westhead | Kempe | DI Bob Cherry | 1 | 2 |
| Joshua Hill | Computer Countdown Voice | D.I. Andrew Walsh | 1 | 2 |
| Will Thorp | Toby Zed | Peter Forbes | 2 | 1 |
| Graham Turner | Amos | Arthur Simpson | 1 | 2 |
| Kirsty Besterman | Solpado | Amy Nash | 1 | 2 |
| Sunetra Sarker | Indira | Fiona Mason | 1 | 1 |
| Shane Zaza | Prem | Sami Rashid | 1 | 2 |
| Simon Lipkin | Nollarr | Darryl Simmonds | 1 | 1 |
| Caroline Berry | Dinner Lady | Brenda Cates | 1 | 1 |
| Rebecca Oldfield | Erina Lessak | Miriam Heller | 1 | 1 |
| Sue Kelvin | Suzette Chambers | Cheryl Dear | 1 | 1 |
| Bhasker Patel | Jival Chowdry | Inran | 1 | 1 |
| Hamza Jeetooa | Manish | Kali Aziz | 1 | 1 |
| Matthew Earley | Man With Chips | Workman | 1 | 1 |
| Scott Stevenson | Dipper | Policeman | 1 | 1 |
| Colin Stinton | President Arthur Winters | Ted Holmes | 1 | 1 |
| Emma Campbell-Jones | Dr. Kent | Tania Laing | 1 | 1 |
Cast data from TVmaze, licensed CC BY-SA 4.0.