Task: Question Answering
Input (English): passage: Frank Williams (born 2 July 1931) is an English actor best known for playing Timothy Farthing, the vicar in the BBC comedy Dad's Army. He and Ian Lavender are the last surviving major cast members. He reprised the role of Farthing in the 2016 film adaptation of the series.
 question: are any of the dad's army cast still alive?
Output (English): Yes