Antoinette Marceau

Antoinette Marguerite Marceau is a non-canonical character created for the video game adaptation of Murder on the Orient Express. She is a subordinate of Monsieur Bouc, a director of La Compagnie Internationale des Wagons-Lits. At the beginning of the game, Bouc tells Antoinette that Poirot is his personal friend who will be travelling from Istanbul to England on the Orient Express. He assigns Antoinette to look after Poirot's every need on the train.

During the gameplay, Poirot becomes immobile because of an ankle injury. Antoinette tooks on the role of an amateur investigator and undertakes the legwork for him, reporting her findings to him and receiving hints.

According to Antoinette's passport, she was born on 17 April 1908. She tells Poirot that she was born and grew up in the small French village of Joucas near Avignon. She went to university in England and thereafter wanted a job which would get her as far away from Joucas as possible because she wanted mystery, adventure and romance. She ended up as a clerk in the Wagons-Lits office in Istanbul. That was a job which had, no mystery, no adventure and no time for romance.

The character is voiced by Vanessa Marshall in the game.