Brennan has a seemingly infinite number of NPC voices

And yet it is comforting to me (as a DM who has maybe 2 extra voices total) to see him repeat one every once in a while. Kingskin's crime syndicate in NSBU are giving me Hot Hands O'Malley and every other bad guy in Johnny Spells' bike gang. Anyone else have any favorite voice doppelgangers across the years?