Josh Charles is back in the middle of a harder lane for Best Medicine Season 2. Jack Cutmore-Scott will guest star in multiple episodes as Parker, the compliance monitor assigned to Martin Best, and the arrangement pushes Louisa into the same orbit when the season opens on September 22.
Port Wenn and Parker
Parker is not being introduced as a one-note obstacle. He arrives in Port Wenn as a charming, friendly monitor whose job is to oversee Martin’s medical compliance, and that makes the role more than a simple guest appearance. It turns one of the show’s central relationships into a three-way pressure point instead of leaving the story where Season 1 ended.
Rodney Ferrell called Parker’s run “a juicy, big arc of the season,” which fits the structure the show is building. The monitor storyline is split across two phases: one monitor gives Martin “all kinds of problems” and then goes away, and Parker comes in after that, so the season is using the compliance plot as a moving engine rather than a single episode beat.
Josh Charles on Martin Best
Charles said Martin is not taking the oversight lightly: “He’s someone who I think is so vastly overqualified for this position, so the idea that because of what happened… he’s just feeling completely frustrated by it to have someone looking over his shoulder to do stuff that he’s more than capable of doing.” That is the practical cost of the monitor plot. Martin is not just answering to the board; he is being forced to work under observation while trying to keep control of his own practice.
He also put a sharper point on the emotional fallout: “But I also think he feels some shame about it because he’s trying to… They don’t know exactly why he did it, but I think they’re here and he’s dealing with it the best he can.” Martin’s problem started when the medical board found out he had been letting Elaine draw blood, while he was hiding a blood phobia from most people.
Louisa notices Parker
Ferrell said, “She finally goes away, and he thinks that this might be over, but then a new one comes in, [Parker], and Louisa notices him.” That keeps the romantic side of the story active instead of parked behind the compliance issue. Best Medicine Season 1 had already set up a will-they-won’t-they dynamic between Martin Best and Louisa, and the finale left Martin about to confess his feelings before he overheard Louisa speaking with Mark.
Mark’s offer to have a baby with her as friends, followed by Martin turning to Eden, Louisa’s fertility doctor, left the relationship in a fragile place. Parker’s arrival adds a fresh complication because he is both the person watching Martin and the person Louisa sees. For a season built around oversight and unfinished feelings, that is the kind of plot turn that should keep the story moving instead of resetting it.
Best Medicine Season 2 begins on September 22, so the immediate question is how long Parker stays embedded in Martin’s daily life and how long Louisa keeps seeing him as more than part of the compliance process. The show is not treating that as background noise; it is treating it as the season’s pressure point.
