And, having seen actress Justine Lupe in action for Episode 6, one of several that Lehane is credited with writing, I can attest to the character’s introduction achieving the same kind of seismic story shift that her first appearances makes in the novel.
More to the point, though, Dennis Lehane was jazzed (in his own understated way) to bring Holly Gibney out to play during the second half of Mr. Mercedes’ initial season on Audience Network.
After all, there are few co-lead protagonists quite like her in the annals of either literature or television, since she’s got mental and physical quirks for days, on top of being quite intellectually incisive.