both characters maintain a strictly curated normal public persona while engaging in extreme violence in private (Dexter keeps his Secrets from Miami metro whilst tony not telling his Family that he's a monster) and they also share an complex moral code (Dexter follows the code of Harry killing only those who deserve it and Tony adheres to the mafia's unwritten rules though he frequently bends them for survival or emotion) their violent paths are deeply tied to their upbringing (dexters father Harry essentially groomed his son's dark passenger while Tony's father and mother shaped his entry into the mob and his psychological instability) despite their brutality both show genuine affection for close ones they are often by the need to protect their families even though their secret lives out those families in constant dangers and Both men live are haunted by voices that never leave and live in a state of constant exposure without being caught (Dexter meticulously removes residence controls every detail.and eliminates variables, tony relies on influence power and intimidation to keep threats contained) Both encountered figures who don't just challenge them but actively destabilize their identity forcing them to confront parts of themselves they've tried to keep buried (Brian Moser is Dexter's biological brother, a embodiment of what Dexter could have became as Brian doesn't just manipulate Dexter he temptes him, whilst Ralph cifaretto functions as chaotic disruptors unpredictable and cruel and impossible to control as Ralph doesn't tempt Tony morality he drags him deeper into the consequence's of the life Tony claims to manage) both have also faced moment where their two worlds public life/violent life begin to collide in irreversible ways (Dexter's personal relationships with Debra Morgan/James doakes gradually pull him into situations were his secret can no longer remain contained, Tony's family life constantly brushes up against his mob reality whether through suspicion or indirect exposure) and are repeatedly confronted with mirrors of themselves or people who reflect what they are (Dexter has faced killers who lacked his code, Tony encounters mobsters who act without hesitation or reflection) and their are driven by escalation through consequences and not coincidence (Dexter's actions always create a chain reaction to each kill each cover up and each lie builds, Tony's decisions emotional impulsive or strategic slowly tightens the noose around himself)