1) Acting icon Peter 2) Actor 3) Actor-writer peter 4) Author of Dear Me 5) Billy Budd director 6) British actor and playwright 7) Dear Me theatrical memoirist 8) Dramatist 9) Frequent poirot portrayer 10) He played Nero in Quo Vadis 11) Histrion 12) Knighted actor 13) Peter alexander ustinov 14) Peter who often played Poirot Found on https://www.crosswordclues.com/clue/ustinov