Harcourt Grimesby is the twin brother to Mycroft Grimesby, introduced in Season 1 of Murdoch Mysteries, portrayed by an unknown actor.

Appearances and Mentions

Belly Speaker

  • The twins are born into a poor family without the means to support two children. Roderick and his wife kept Harcourt and gave up Mycroft.
  • The remains of Harcourt's 10 year old body is discovered at the bottom of the armoire at the end of the episode.
  • Since Mycroft, pretending to be Harcourt, told Murdoch a family tale that fit the evidence, he is released when he tells Detective William Murdoch that his twin brother, thought to be alive, had murdered their father. By the time Murdoch uncovers Harcourt's body, Mycroft is untraceable. While it is clear that Mycroft killed his father, it is ambiguous who and how young Harcourt died and how their deceased mother died as well.
  • The Grimesby men had the genetic trait known as heterochromia in which the eyes are different in colour. Where Roderick and Harcourt had brown left eyes and blue right eyes, Mycroft had the reverse. This fact would have given away which twin was which to their parents.


Murdoch Mysteries Season 1
"Power" • "The Glass Ceiling" • "The Knockdown" • "Elementary, My Dear Murdoch" • "'Til Death Do Us Part" • "Let Loose the Dogs" • "Body Double" • "Still Waters" • "Belly Speaker" • "Child's Play" • "Bad Medicine" • "The Prince and the Rebel" • "The Annoying Red Planet"
Season 2Season 3Season 4Season 5Season 6Season 7Season 8Season 9Season 10
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