▁of ▁his ▁old ▁army ▁regiment ▁from ▁the ▁Indian ▁War . ▁A ▁Scotland ▁Y ard ▁inspect or ▁investig ating ▁the ▁hom ic ides ▁asks ▁Mont ague ▁to ▁have ▁the ▁nine ▁remaining ▁members ▁of ▁his ▁regiment ▁assemble ▁at ▁his ▁estate , ▁so ▁as ▁to ▁protect ▁them ▁from ▁being ▁murder ed ▁one ▁by ▁one , ▁and ▁so ▁that ▁he ▁can ▁hopefully ▁learn ▁the ▁identity ▁of ▁the ▁assass in , ▁assuming ▁the ▁k iller ▁may ▁be ▁one ▁of ▁them . ▁ ▁Cast ▁▁ ▁Ernest ▁Tor rence ▁as ▁Dr . ▁Richard ▁Ball ou ▁ ▁Roland ▁Young ▁as ▁Lord ▁' Mon te ' ▁Mont ague ▁ ▁Dor othy ▁Sebastian ▁as ▁Lady ▁E fra ▁Cav ender ▁ ▁Natal ie ▁Mo or head ▁as ▁Lady ▁V io let ▁' V i ' ▁Mont ague ▁ ▁Sydney ▁Jar vis ▁as ▁Jordan , ▁the ▁but ler ▁ ▁Pol ly ▁Mor an ▁as ▁Pol ly , ▁the ▁ma id ▁ ▁George ▁Cooper ▁as ▁F ry ▁the ▁Order ly ▁ ▁S ō jin ▁K ami y ama ▁as ▁Lee ▁Han , ▁the ▁myst ic ▁ ▁Claude ▁F lem ing ▁as ▁Sir ▁James ▁Rum sey ▁ ▁Clar ence ▁G eld art ▁as ▁Ins pect or ▁Lewis ▁ ▁John ▁Mil jan ▁as ▁Major ▁Arthur ▁Mall ory ▁ ▁Richard ▁T ucker ▁as ▁Colonel ▁David son ▁ ▁John ▁L oder ▁as ▁Captain ▁Dor chester ▁ ▁Philip ▁Str ange ▁as ▁Lieutenant ▁Williams ▁ ▁John ▁Ro che ▁as ▁Lieutenant ▁Sav or ▁ ▁Lion el ▁Bel more ▁as ▁Major ▁David ▁End ic ott ▁ ▁Ger ald ▁Barry ▁as ▁Captain ▁Brad ley ▁