Answer: treacher

AnswerCrossword Clue
TREACHERArthur ... (British actor for whom a seafood chain is named)
TREACHERGriffin's talk-show sidekick
TREACHEREnglish actor Arthur
TREACHERFamous movie butler.
TREACHERArthur the movie butler
TREACHERPerfect butler in old films
TREACHERActor Arthur: 1894-1975
TREACHERHe had the title role in "Thank You, Jeeves"
TREACHERArthur ... (British actor for whom a fast-food fish chain is named) (8)
treachera betrayer (one who betrays (to disclose in breach of trust))