▁the ▁Royal ▁Navy ▁Cy ril ▁L uck ham ▁was ▁educated ▁at ▁R NC ▁Os bor ne ▁and ▁D art mouth ▁and ▁briefly ▁followed ▁his ▁father ▁into ▁the ▁service . ▁He ▁was ▁promoted ▁Lieutenant ▁in ▁ 1 9 3 0 ▁and ▁retired ▁the ▁following ▁year , ▁transfer ring ▁to ▁the ▁Emer gency ▁List . ▁After wards ▁he ▁trained ▁for ▁the ▁stage ▁with ▁the ▁Arthur ▁Br ough ▁school ▁at ▁Fol k estone , ▁making ▁his ▁debut ▁with ▁Br ough ' s ▁company ▁there ▁in ▁The ▁Ad mi rable ▁Cr icht on ▁in ▁ 1 9 3 5 . ▁For ▁several ▁years ▁he ▁appeared ▁in ▁provincial ▁re pert ory , ▁not ably ▁with ▁the ▁Rap ier ▁Play ers ▁at ▁Br istol ' s ▁Little ▁Theatre . ▁He ▁had ▁been ▁promoted ▁to ▁Lieutenant - Comm ander ▁on ▁the ▁retired ▁list ▁in ▁ 1 9 3 8 ▁and ▁was ▁re called ▁to ▁the ▁Navy ▁when ▁the ▁War ▁broke ▁out . ▁He ▁was ▁in val ided ▁out ▁soon ▁afterwards ▁following ▁serious ▁ill ness ▁and ▁returned ▁to ▁the ▁theatre . ▁L uck ham ▁made ▁his ▁West ▁End ▁debut ▁as ▁Tor val d ▁Hel mer ▁in ▁A ▁D oll ' s ▁House ▁at ▁the ▁Arts ▁Theatre ▁in ▁July ▁ 1 9 4 5 . ▁For ▁several ▁years ▁afterwards ▁his ▁stage ▁work ▁was ▁largely ▁back ▁in ▁the ▁provinces ▁including ▁the ▁tour ing ▁company ▁of ▁the ▁Old ▁Vic . ▁▁▁▁▁▁ ▁L uck ham ▁played ▁the ▁White ▁Guardian ▁in ▁the ▁long ▁running ▁science ▁fiction ▁television ▁series ▁Doctor ▁Who . ▁He ▁appeared ▁in ▁The ▁Rib