The following people are credited as replacements or additions if they were not credited on opening night.

Robert Fitch	One of the Killers
Patricia Gosling	Ensemble
Eric Mason	Ensemble
Ross Miles	One of the Killers

Theatre Owned / Operated by The Martin Beck Estate.

Joe Bennett	Wiggins
Lois Castle	Tavern Singer
Larro Chelsi	Ensemble
Hugh Dempster	Dr. Watson
Marilyn D'Honau	Ensemble
Tina Faye	Ensemble
George Fisher	Murillo
John Grigas	One of the Killers
Daniel P. Hannafin	Ensemble
Harry Kalkanis	One of the Killers
Richard Marr	Ensemble
Richard Miller	Ensemble
Marie O'Kelley	Ensemble
Seymour Penzner	Professor Moriarty
Toni Reither	Ensemble
Mary Roche	Ensemble
Bob Scherkenbach	Duckbellows
Clive Thompson	One of the Killers
Ian Tucker	Macipper

Standby: Barbara Lang (Irene Adler).

Understudies: Larro Chelsi (Inspector Lestrade), John Grigas (Murillo), Peter Johl (Professor Moriarty), Alan Johnson (Duckbellows, Macipper, Nipper, Perkins), Richard Marr (Dr. Watson), Eric Mason (Captain Gregg), Richard Miller (Baxter), Bob Scherkenbach (Wiggins).