Visible crew/equipment: As Hannibal and Murdock are coming over the wall of the jail in their hot-air-trash-bag chairs, you can see that the brick is a facade as the guard shoots at them. (41:25 / 41:39). (00:41:25)
Revealing mistake: When Hannibal drives the blue car into the sheriff's office trying to get arrested, the wooden jump ramp is visible.
Chosen answer: The "H" stands for Hector. The "M" is never explained in the series.
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