3 5 ▁– ▁ 2 3 ▁September ▁ 2 0 0 5 ) ▁was ▁an ▁English ▁actor . ▁ ▁Though ▁never ▁a ▁major ▁star , ▁B rier ley ▁appeared ▁in ▁many ▁television ▁produ ctions ▁over ▁a ▁forty - year ▁period . ▁He ▁twice ▁appeared ▁in ▁Doctor ▁Who , ▁as ▁Tre vor ▁in ▁The ▁D ale ks ' ▁Master ▁Plan ▁( 1 9 6 5 ) ▁and ▁as ▁the ▁voice ▁of ▁Dr ath ro ▁in ▁The ▁Myst er ious ▁Planet ▁( 1 9 8 6 ). ▁B rier ley ▁appeared ▁in ▁the ▁bi op ic ▁J inn ah , ▁based ▁on ▁the ▁life ▁of ▁Muhammad ▁Ali ▁J inn ah , ▁in ▁the ▁Gran ada ▁television ▁series ▁Je e ves ▁and ▁Wo oster ▁as ▁Sir ▁R oder ick ▁G loss op , ▁and ▁as ▁a ▁Latin ▁teacher ▁to ▁Michael ▁Pal in ▁in ▁the ▁last - ever ▁episode ▁of ▁R ipping ▁Y ar ns , ▁called ▁Roger ▁of ▁the ▁Raj ▁and ▁which ▁first ▁shown ▁on ▁BBC 1 ▁in ▁ 1 9 7 9 . ▁He ▁played ▁the ▁part ▁of ▁Os bor ne ▁in ▁" S ud den ly ▁At ▁Home ", ▁a ▁ 1 9 7 7 ▁episode ▁of ▁in ▁the ▁television ▁series ▁R ising ▁D amp . ▁He ▁was ▁also ▁in ▁a ▁ 1 9 8 2 ▁episode ▁of ▁Only ▁F ools ▁and ▁H ors es . ▁Later ▁work ▁included ▁port ray ing ▁John ▁B iff en ▁in ▁the ▁television ▁dram at isation ▁of ▁The ▁Alan ▁Clark ▁Di aries ▁( 2 0 0 4 ).