The Sign of Four is a 2001 Hallmark Channel original movie directed by Rodney Gibbons starring Matt Frewer and Kenneth Welsh. The film premiered on March 1, 2001.
Lead roles are shown in bold.
| Actor | Role |
|---|---|
| Matt Frewer | Sherlock Holmes |
| Kenneth Welsh | Dr. Watson |
| Kevin Woodhouse | Williams |
| Dennis St John | Sherman |
| Emma Stevens | Mrs. Smith |
| Kenneth Fernandez | Khitmutgar |
| Una Kay | Mrs. Bernstone |
| Cas Anvar | Sikh #1 |
| Kathleen McAuliffe | Mrs. Hudson |
| Marcel Jeannin | Thaddeus / Bartholomew |
| Michel Perron | Inspector Jones |
| Sophie Lorain | Miss Morstan |
| Edward Yankie | John Small |
| Samir Mallal | Sikh #2 |
| Daniel Brochu | Wiggins |
| Fernando Chien | Tonga |
| Ganesha Rasiah | Sikh #3 |
| John Keyworth | Major Sholto |
| Noel Burton | Professor Morgan |
| Chimwemwe Miller | Achmet |
| Writer | Joe Wiesenfeld |
| Director | Rodney Gibbons |