Henrietta's change from a faceless to a non-faceless character will be explained in a new episode.
The coach close to Toby was revealed to grow a face for the show's 18th Series, in a hero shot released by the Mexican Thomas & Friends Twitter.
Speaking to Roll Along Thomas this week, a Hit Entertainment spokesperson responded to the move.
While we were hoping for this to remain a surprise for Thomas & Friends fans, you’ll just have to wait and see Series 18. [An] episode will explain the decision to give Henrietta a face and voice.
Despite having no face in the majority of the show, Toby and the Stout Gentleman and Daisy allowed dialogue for the character.