Tasha

A house maid in the Mölders family. She is the companion of Dorothea, and she shares same taste in hats with Emma.

The madam's companion is seen 16m into episode 12 when she calls out to the madam. She is entertained when she learned that the madam had thought Emma was her, probably because they wore similar hats.

Later, Emma turns out to be sitting next to her in second class. Emma had initially wanted a third class ticket, but they were out so she was forced to buy a second class.

She turns out to be a clumsy maid who replaced Dorothea's usual companion, Nanette, on the trip to England. She also rooms with Emma later and defends her when she is accused of thievery.

(Source: Emma Wikia, edited)