Justin Maldonado took up the role of Sherlock Holmes in this installment, replacing Ben Lord whom played the part in the previous two installments. Ben Lord had left the film in Pre-Production due to scheduling conflicts and on set tensions.
Chris Rodriguez (Watson), Scott Achord (Milverton), and Patrick Lamourea (Clay) had all previously worked on a project before. It was their first video project they'd ever done for a class back in grade school called The Dream. This was a reunion of sorts.
Both Justin Maldonado and Duke Managhan when not acting work on comic books. Justin is working on a new comic series called The Arc, and Duke is working on a web comic called Desmond Comics.
Chris Zant was cast as Detective Lestraud over a Skype conversation. After work one day Zant had brought up to Scott that if he gave him any script he would be in it because he was eager to help in the film making process. That night he was cast as Lestraud.
The post credits scene is actually a cut segment from the original draft of the short film. After rewrites that segment got left on the cutting room floor but was loved by Achord and Rodriguez. So they chose to put it in as an homage to the original.