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Book cover of The Mousetrap
The MousetrapAgatha Christie

Characters in The Mousetrap

8 characters, main characters first.

Main characters

  • Mollie Ralston

    Newly married co-owner of Monkswell Manor, anxiously hosting her first guests as the snow closes in.

  • Giles Ralston

    Mollie's husband of one year and co-host of the guesthouse, married only recently and still half a stranger to her past.

Supporting characters

  • Detective Sergeant Trotter

    A young policeman who reaches the snowbound manor on skis and warns that a murderer may be among those present.

  • Christopher Wren

    A jittery, excitable young guest whose erratic manner unsettles the household.

  • Mrs Boyle

    A stern, hard-to-please older guest who finds fault with everything and everyone.

  • Major Metcalf

    A retired army officer, outwardly conventional and observant of those around him.

  • Miss Casewell

    A reserved, somewhat aloof traveller who keeps her distance and reveals little of herself.

  • Mr Paravicini

    An unexpected guest who arrives after his car is stranded in the snow, mannered and faintly theatrical.