y ▁Hay ward ▁( Ar thur ▁Mac ra e ), ▁with ▁Ins pect or ▁Te al ▁( G ordon ▁Mc Le od ) ▁of ▁Scotland ▁Y ard . ▁ ▁Cast ▁ ▁Hugh ▁S inc la ir ▁as ▁Simon ▁Tem pl ar , ▁a ka ▁The ▁Saint ▁▁▁ ▁S ally ▁Gray ▁as ▁Mary ▁Lang don ▁▁▁ ▁Arthur ▁Mac ra e ▁as ▁Mont y ▁Hay ward ▁▁▁ ▁Cec il ▁Parker ▁as ▁Rud olph ▁Haus er ▁▁▁ ▁Le ue en ▁Mac Gr ath ▁as ▁Val erie ▁( as ▁Le ue en ▁Mac gr ath ) ▁▁▁ ▁John ▁War wick ▁as ▁Gregory ▁▁▁ ▁Mann ing ▁While y ▁as ▁Mark o ▁▁▁ ▁Felix ▁A yl mer ▁as ▁Charles ▁Le ight on ▁▁▁ ▁I vor ▁Bar n ard ▁as ▁Emil ▁▁▁ ▁Gordon ▁Mc Le od ▁as ▁Ins pect or ▁Te al ▁ ▁Eric ▁Cla ver ing ▁as ▁Re porter ▁( un cred ited ) ▁▁ ▁Rod dy ▁Hugh es ▁as ▁V alet ▁( un cred ited ) ▁ ▁Notes ▁In ▁June ▁ 1 9 3 9 ▁it ▁was ▁announced ▁John ▁F arrow ▁would ▁direct ▁the ▁film . ▁ ▁Several ▁characters ▁from ▁G eta way ▁do ▁appear ▁in ▁the ▁film ▁adaptation , ▁most ▁not ably ▁Tem pl ar ' s ▁friend ▁Mont y ▁Hay ward ▁( the ▁only ▁time ▁this ▁rec urr ing ▁character ▁from ▁the ▁early ▁nov els ▁appeared ▁on ▁film ). ▁The ▁villa in ▁of ▁the ▁film , ▁Rudolf ▁Haus er ▁( play ed ▁by ▁Cec il ▁Parker ) ▁is ▁an ▁adjust ment ▁of ▁the ▁book ' s