Characters in Third Girl

Supporting characters

• Hercule Poirot

  Confronts his own age and irrelevance to a generation that dismisses him as too old.

  Also in The Mysterious Affair at Styles, Murder on the Links, Poirot Investigates, The Murder of Roger Ackroyd, The Big Four, Mystery of the Blue Train, Black Coffee, Peril at End House, Lord Edgware Dies, Murder on the Orient Express

• Ariadne Oliver

  Eccentric, restless, and prone to amateur sleuthing; Christie's self-parodying author stand-in.

  Also in Cards on the Table, Mrs. McGinty's Dead, Dead Man's Folly, Hallowe'en Party, Elephants Can Remember, Hercule Poirot and the Greenshore Folly

• Norma Restarick

  The 'third girl' of a shared flat, anxious, uncertain, and unable to trust her own memory.

• Andrew Restarick

  Reconnecting with a daughter he barely knows after a long estrangement.

• Mary Restarick

  Her uneasy place in the household feeds Norma's fears and the family's tensions.

• David Baker

  A flamboyant, peacock-dressed young man the older generation reads as a fortune-hunter.

• Claudia Reece-Holland

  Efficient and self-possessed, a foil to Norma's disarray.

• Frances Cary

  Languid and elusive, with dark hair falling across her face.

• Dr Stillingfleet

  Blunt and unconventional, he treats Norma's mental state as central to the mystery.

• Mr Goby

  Never quite makes eye contact; supplies the quiet legwork behind Poirot's deductions.