Martin

Martin is Claire's husband, an alcoholic whose outward joviality masks a deeply unpleasant and manipulative personality. A recovering drinker who is constantly falling off the wagon, Martin uses humor and self-deprecation as tools to deflect accountability for his behavior. He is the kind of man who makes inappropriate comments at dinner parties and then acts wounded when called out, positioning himself as the victim in every conflict he creates.

Martin's relationship with Claire is one of the show's most incisive portrayals of a toxic marriage. He undermines Claire's confidence, embarrasses her in public, and weaponizes her need for order and control against her. In Season 1, a disturbing incident involving Fleabag reveals the depth of Martin's predatory behavior, and his ability to gaslight both sisters into questioning their own perceptions is chillingly realistic.

In Season 2, Martin's alcoholism and erratic behavior escalate as Claire begins to pull away from their marriage. His desperation manifests as increasingly unhinged attempts to maintain control — showing up drunk to family events, making scenes, and pleading for sympathy. Martin represents the type of abuser who hides behind charm and vulnerability, making it difficult for those around him to articulate exactly why he is so dangerous. Brett Gelman's performance walks a tightrope between comedy and menace, making Martin both the show's comic relief and its most insidious threat.