| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 David Hoselton | Crew | Creator | Creator | |
David N. Titcher | Crew | Creator | Creator | |
 Nazrin Choudhury | Crew | Production | Co-Producer | 10 |
 Amanda Lawrence | Cast | Actress | Sister Mathilda | 1 |
 Amy Huberman | Cast | Actress | Mrs. Anne Batch | 1 |
 Andrea Lowe | Cast | Actress | Beatrice Upton | 1 |
 Andrew Bicknell | Cast | Actor | Exorcist | 1 |
 Angela Curran | Cast | Actress | Vera Stuffts | 1 |
 Billy MacLellan | Cast | Actor | Constable Billy McKinnon | 1 |
 Chu Omambala | Cast | Dr. Randall | 1 | |
 Daniel Matmor | Cast | Rabbi | 1 | |
Dean Forster | Cast | Herbert Oglivie | 1 | |
 Diana Quick | Cast | Actress | Cecilia Weiss | 4 |
Eileen O'Brien | Cast | Actress | Sister Fabian | 1 |
 Emily Hampshire | Cast | Actress | Madame Korzha | 1 |
 Enuka Okuma | Cast | Actress | Jane Downey | 1 |
 Ewen Bremner | Cast | Actor | Sherlock Holmes | 1 |
 James Fleet | Cast | Actor | Dr. Pilsen | 1 |
 James Lance | Cast | Actor | Barrett Underhill | 1 |
 Janine Duvitski | Cast | Actress | Martha | 1 |
 Jeremy Swift | Cast | Actor | Dr. Henry Whitaker | 1 |
 Joel Morris | Cast | Actor | Jim Gorton | 1 |
 Joplin Sibtain | Cast | Actor | Dr. Chandra (as Chook Sibtain) | 1 |
 Laura Fraser | Cast | Actress | Lydia Belworth | 1 |
 Lex Shrapnel | Cast | Actor | Mitchell Pearce | 1 |
 Louise Delamere | Cast | Actress | Touie Doyle | 2 |
 Mark Caven | Cast | Actor | Sherlock Holmes | 1 |
Marshall Griffin | Cast | Security Guard | 1 | |
 Mary Healey | Cast | Actress | Mrs. Blake | 1 |
 Michael Weston | Cast | Actor | Harry Houdini | 10 |
 Nicolas Van Burek | Cast | Actor | Stuart Branowski | 1 |
 Owen Teale | Cast | Actor | Professor Havensling | 1 |
 Paul Ritter | Cast | Actor | Bram Stoker | 1 |
 Penny Downie | Cast | Actress | Mrs. Sulzbach | 1 |
 Peter Outerbridge | Cast | Actor | Thomas Edison | 1 |
Phil Nice | Cast | Actor | Reverend Gilby | 1 |
 Reece Noi | Cast | Actor | Daniel Berry | 1 |
 Risteard Cooper | Cast | Actor | Charles Doyle | 1 |
 Simon Northwood | Cast | Actor | Mr. Emmett Reid | 1 |
 Stephen Mangan | Cast | Actor | Arthur Conan Doyle | 10 |
 Tim McInnerny | Cast | Actor | Chief Inspector Horace Merring | 3 |
 Adam Nagaitis | Cast | Actor | Sergeant George Gudgett | 4 |
 Andrew Bridgmont | Cast | Dr. Perlow | 1 | |
 Brandon Oakes | Cast | Actor | Walt | 1 |
 Elias Toufexis | Cast | Actor | Roland Carson | 1 |
 Lara Jean Chorostecki | Cast | Actress | Clara Reid | 1 |
 Natalie Krill | Cast | Actress | Amelia | 1 |
 Nicholas Burns | Cast | Actor | Frederick Batch | 1 |
 Paddy C Courtney | Cast | Actor | Mr. Gaines | 2 |
 Simone Kirby | Cast | Actress | Sister Grace | 1 |
 Adelayo Adedayo | Cast | Actress | Winnie | 1 |
 Blake Harrison | Cast | Actor | Lyman Biggs | 1 |
 Helen Millar | Cast | Actress | Isobel Underhill | 1 |
 Jacob Blair | Cast | Actor | Benjamin Graves | 2 |
Kevin Mains | Cast | Lachlan MacBride | 1 | |
 Nathan Stewart-Jarrett | Cast | Actor | Elias Downey | 1 |
 Paul Warren | Cast | Actor | First Alien | 1 |
 Sian Breckin | Cast | Actress | Margery McGuire | 1 |
Thomas Howes | Cast | Actor | Constable Booth | 1 |
 Charlotte Hope | Cast | Actress | Molly Morgan | 1 |
 Edward Akrout | Cast | Actor | Henry | 2 |
Neil Broome | Cast | Actor | The Coughing Man | 1 |
 Rebecca Liddiard | Cast | Actress | Constable Adelaide Stratton | 10 |
Andy Gillies | Cast | Pumley | 1 | |
 Samuel Joslin | Cast | Actor | Peter Bennett | 1 |
Sandy Kate Slade | Cast | Cavedweller (uncredited) | 1 | |
 Tom Canton | Cast | Actor | Paul Hargreaves | 1 |
 Lady Conny Sharples | Cast | Actress | Amanda Posh (as Conny Sharp) | 2 |
 Gavin Williams | Cast | Patron #3 | 1 | |
 Jason Redshaw | Cast | Actor | Brothel Customer (uncredited) | 1 |
Nig Richards | Cast | Actor | Mourner | 1 |
 Sarah Abbott | Cast | Actress | Libby Cotter | 1 |
Dennis O'Donnell | Cast | Actor | Dinner Guest (uncredited) | 1 |
 Emily Carey | Cast | Mary Conan Doyle | 6 | |
 Lewis McGowan | Cast | Actor | Young Doyle | 1 |
 Noah Jupe | Cast | Actor | Kingsley Conan Doyle | 5 |
 Philip Gascoyne | Cast | Actor | Scotland Yard Detective | 1 |
 Sebastian Croft | Cast | Actor | Newsie | 1 |
 Tereza Srbova | Cast | Actress | Natalia | 1 |
 Timothy Mooney | Cast | Actor | Mr. Turner (as Tim Mooney) | 1 |
Dave Reachill | Cast | Hotel Patron (uncredited) | 1 | |
 Joe Sims | Cast | Actor | Nathaniel | 1 |
Martin Gledhill | Cast | Lunatic | 1 | |
 Bo Martynowska | Cast | Actress | Young Woman (as Bo Martyn) | 2 |
 Lily-Rose Aslandogdu | Cast | Actress | Julia Hargreaves | 1 |
 Tommy McDonnell | Cast | Actor | Nigel Pennington | 1 |
 Ruth Lass | Cast | Clara Bennett | 1 | |
 Dritan Kastrati | Cast | Actor | Vladimir Palinov | 1 |
 Ali Momen | Cast | Rustom Avari | 1 | |
 Justin Rutledge | Cast | Actor | Theodore Weiss | 1 |
 Kjartan Hewitt | Cast | Actor | Reverend Harley | 1 |
Patricia Winker | Cast | Medium (uncredited) | 1 | |
 Stacey Gough | Cast | Head Guard | 1 | |
 Esh Alladi | Cast | Actor | Dr. Kasad | 1 |
 Jerry-Jane Pears | Cast | Florrie | 2 | |
Jobie McPartland | Cast | Actress | Terrified Woman (uncredited) | 1 |
 Anna Koval | Cast | Actress | Liliana | 1 |
Yahya Baggash | Cast | Police Witness (uncredited) | 1 | |
Tom Bishop Jr. | Cast | Actor | Carriage Driver | 1 |
Graham Burton | Cast | Actor | Clown | 1 |
 Alina Chan | Cast | Escort | 1 | |
 Andrew Regan | Cast | Estate Agent (uncredited) | 1 | |
Keith Lomas | Cast | Actor | Audience | 1 |
 Richard Price | Cast | Actor | Houdini Stage Hand (uncredited) | 1 |
 Gillian Saker | Cast | Rosie Berry | 1 | |
Scott Jenkinson | Cast | Actor | Spring Heel'd Jack | 1 |
 Patrick Carney Junior | Cast | Upper Class Gent | 2 | |
Allison Saxton | Cast | Actress | Nun | 1 |
John Smeathers | Cast | Actor | Blind Man (uncredited) | 1 |
Natasha Jean Sparkes | Cast | Sophie (as Natasha Sparkes) | 1 | |
| Person | Type | Job | Role(s) | Episodes |
