Seth Hoffman: The Married Boss Who Betrays Everyone

Overview

Seth Hoffman is the branch manager at Vixed, the Boston supplement company where much of The Coworker unfolds. As Natalie Farrell’s married boss and secret lover, Seth initially appears as a competent, likable manager. But his casual dismissal of Dawn Schiff, his willingness to have an affair while married, and his swift turn against Natalie when suspicions arise reveal a man driven by self-interest and a fragile ego. By the end of the novel, Seth has been manipulated into abandoning his marriage while remaining blind to the corruption around him.

Plot Role

Seth occupies a pivotal position: he is the authority figure whose actions create the conditions for the central mystery. When Dawn Schiff disappears, Seth first downplays Natalie’s concerns, then later becomes a key witness against her. He provides Detective Santoro with evidence that Natalie embezzled funds — information Dawn had uncovered in her emails. Seth’s role shifts from romantic interest to accuser, fueling Natalie’s desperation and the novel’s central conflict.

Motivations and Traits Shown Through Actions

Seth’s behavior throughout the story reveals several consistent traits:

• Self-preservation above loyalty. He quickly believes the detective’s accusation of embezzlement against Natalie, despite their year-long affair. In Chapter 39, he confronts her with cold anger, placing her on unpaid suspension and declaring he will review the accounts himself. He never stops to consider that Dawn might have been the one framing Natalie.
• Casual dismissal of subordinates. His email exchanges with Dawn show consistent dismissiveness. He responds to her detailed, anxious requests with one-line replies like “Okay, sure” or “Jesus, Dawn.” He permits her mug to be destroyed in the break room without any investigation, and he ignores her cost-saving proposals.
• Emotional neediness. During the affair, Seth repeatedly seeks validation from Natalie. He separates from his wife Melinda and professes his love, hoping Natalie will leave Caleb for him. When she resists, he sulks and accuses her of using him.
• Insecurity masked as confidence. In meetings he projects charm, but his refusal to consider Dawn’s suggestions stems from an unwillingness to admit that his star salesperson might be wasteful. He cannot tolerate being told he made a “poor managerial decision.”

Chronological Arc

Seth’s arc unfolds across three time frames.

Early months (flashbacks, five to nine months before the present): Seth hires Dawn, gives her a rushed tour, and immediately shows impatience. He tolerates Natalie’s high-spending sales tactics because they bring results. He begins an affair with Natalie while still married to Melinda, lying to his wife about late nights at the office.

Pre-disappearance period (days before the event): Seth receives Dawn’s urgent email requesting a formal meeting about a “sensitive matter.” He brushes it off with a casual “How’s tomorrow at 2?” — never learning what she wanted to discuss.

Present day (post-disappearance): After Dawn’s body is found, Seth becomes a source of support for Natalie, even kissing her again. However, when Detective Santoro informs him that Dawn had written about Natalie’s embezzlement, Seth immediately turns. He accuses Natalie of stealing from the company and suspends her. In the epilogue, one year later, Seth has divorced Melinda and is still involved with Natalie, though she continues to embezzle funds from the charity run without his knowledge.

Relationships

Seth and Natalie

Their affair is the driving emotional subplot. Natalie is drawn to Seth’s charm and physical presence, but she also uses the relationship for career advantage. Seth’s belief that Natalie manipulated him reveals his fundamental insecurity. After he accuses her, the relationship fractures, yet by the epilogue they remain together — suggesting Seth has learned nothing about trust.

Seth and Dawn

Seth never views Dawn as anything other than an annoyance. He dismisses her emails, mocks her in front of colleagues, and fails to protect her from workplace bullying. His negligence indirectly enables the toxic environment where Dawn is isolated and vulnerable.

Seth and Melinda

His marriage erodes because of the affair. Melinda discovers it and leaves a threatening note on Natalie’s desk. Seth strings Melinda along with promises, then divorces her after Dawn’s murder, admitting the separation was partly due to his feelings for Natalie.

Seth and Detective Santoro

Seth cooperates fully with the investigation, handing over Dawn’s emails that implicate Natalie. This decision — intended to clear his own name — makes him an unwitting tool in framing an innocent woman (Natalie was actually embezzling, but not for the reasons Seth assumes).

Key Decisions and Consequences

Theme and Symbol Connections

• Deception and framing – Seth is deceived by both Natalie and Dawn. He believes the surface story, never suspecting that Dawn’s emails were weaponized or that Natalie is still embezzling.
• Workplace bullying – Seth’s passive acceptance of the bullying culture (allowing Dawn’s mug to be broken, ignoring her isolation) makes him complicit in the hostility that isolates her.
• Guilt and remorse – Seth shows no remorse for his role in Dawn’s suffering or for his affair. He deflects blame onto Natalie and moves on.
• Friendship and betrayal – Though not directly a friend, Seth betrays Natalie’s trust by immediately assuming the worst of her, proving that his affection was conditional.
• The turtle figurine – While Dawn owns turtle symbols, Seth’s missing wedding ring in Chapter 2 signals his betrayal. The ring is a symbol of broken vows, just as the shattered turtle mug symbolizes Dawn’s crushed hopes for workplace acceptance.

5 Book-Specific Questions and Answers

Q1: Why does Seth Hoffman ignore Dawn’s urgent email at the start of the novel?
A1: Seth is accustomed to dismissing Dawn’s anxious communication style. He replies casually without understanding the gravity, likely because he is distracted by his affair and his crumbling marriage. This neglect prevents him from learning the secret Dawn was about to share.

Q2: Does Seth truly believe Natalie embezzled money, or is he just protecting himself?
A2: Seth genuinely believes the accusation because it fits his insecurities. He had always wondered how Natalie afforded her lifestyle. His rage in Chapter 39 derives from feeling used — he thinks she only slept with him to further her scheme. However, his quick willingness to condemn her also reveals a self-protective impulse: by cooperating with the detective, he deflects suspicion away from himself.

Q3: How does Seth’s affair with Natalie affect the investigation?
A3: It creates a motive for both characters to lie. Natalie initially covers for Seth to protect their secret, while Seth later uses the affair as evidence that Natalie was manipulative. The affair muddies the timeline and gives the detective reason to suspect them both.

Q4: What is Seth’s greatest flaw?
A4: His inability to see beyond appearances. He judges Dawn as insignificant, Natalie as either angel or villain, and himself as a victim. He never questions whether Dawn might have framed Natalie, or whether his own negligence contributed to her murder.

Q5: Does Seth change by the epilogue?
A5: No. A year later, Seth is still with Natalie, clueless that she continues to embezzle from the charity run. He has learned nothing about trust or responsibility, remaining the same self-absorbed manager he was at the start.

Conclusion

Seth Hoffman is not a villain in the way Dawn or Tara Wilkes are, but his ordinary failings — inattention, vanity, cowardice — make him a perfect enabler of tragedy. He is the boss who looked the other way, the lover who believed the worst, and the man who will never understand his own role in the disaster. Freida McFadden uses Seth to show how casual cruelty and self-absorption can be as destructive as outright malice. For readers, he serves as a cautionary figure: a reminder that the people in power are not always the ones holding the weapon, but often the ones holding the door open.

For deeper analysis of the novel’s ending and character arcs, visit our ending explained and themes of revenge pages.