The Cat’s Paw: When One Person’s Bias Infects Another’s Decision
The person who made the termination decision had no discriminatory motive. But the person who recommended the termination — who fed the decision-maker the information, the characterization, the recommendation — did. The bias was laundered through a neutral decision-maker. Under the cat’s paw doctrine, the bias still taints the decision.
The cat’s paw doctrine takes its name from a fable: a monkey persuades a cat to pull chestnuts from a fire, using the cat’s paw to retrieve what the monkey wants without burning itself. In employment law, the doctrine applies when a biased actor — a supervisor with discriminatory intent — uses a neutral decision-maker to carry out a termination the biased actor engineered.
The decision-maker is the cat’s paw. The biased supervisor is the monkey. And the termination — though formally made by someone without discriminatory intent — is the product of the bias that drove it.
How it works
The typical cat’s paw scenario involves three actors: the biased supervisor, the neutral decision-maker, and the employee.
The biased supervisor dislikes the employee because of a protected characteristic — age, race, disability, gender — or because the employee engaged in protected activity. The supervisor cannot fire the employee directly because the supervisor does not have termination authority. But the supervisor can influence the person who does.
The supervisor provides the decision-maker with a distorted picture: exaggerated performance problems, fabricated complaints, a recommendation for termination. The decision-maker — who has no independent reason to fire the employee and no discriminatory motive — relies on the supervisor’s recommendation and terminates the employee.
The termination appears clean. The decision-maker had no bias. But the decision was driven by bias — because the information that produced it was supplied by someone who did.
The legal principle
The U.S. Supreme Court addressed the cat’s paw doctrine in Staub v. Proctor Hospital (2011), holding that an employer is liable when a supervisor with discriminatory animus performs an act intended to cause the adverse action, and that act is a proximate cause of the ultimate employment decision.
California courts apply a similar analysis under FEHA. The question is whether the biased supervisor’s conduct was a substantial factor in the decision — whether the supervisor’s input drove the outcome, even if the formal decision-maker had no independent bias.
The doctrine does not require that the decision-maker knew about the supervisor’s bias. It requires that the supervisor’s bias influenced the decision — that the decision-maker was, functionally, the instrument of the supervisor’s discrimination.
When the doctrine applies
The decision-maker relied on the biased supervisor’s recommendation without independent investigation. The decision-maker received the supervisor’s report — “she’s not performing, we need to let her go” — and acted on it without interviewing the employee, without reviewing the performance records independently, and without evaluating whether the supervisor’s characterization was accurate. The decision-maker’s failure to investigate independently means the bias passed through unchecked.
The supervisor manufactured the basis for the termination. The supervisor issued unwarranted written warnings, gave an unfairly negative performance review, or placed the employee on a PIP designed to fail — all to create the appearance of a performance problem that would justify the recommendation. The decision-maker relied on the manufactured record without questioning its origins.
The supervisor controlled the flow of information. The decision-maker received information about the employee only from the biased supervisor — and the supervisor filtered, distorted, or withheld information to produce the desired outcome. The decision-maker’s picture of the employee was the supervisor’s picture — and the supervisor’s picture was shaped by bias.
When the doctrine does not apply
The cat’s paw doctrine does not apply when the decision-maker conducted an independent investigation that broke the causal chain between the supervisor’s bias and the termination decision. If the decision-maker investigated the supervisor’s claims, reviewed the record independently, interviewed the employee, and reached an independent conclusion — the decision-maker’s independent judgment, not the supervisor’s bias, drove the outcome.
The independence of the investigation is the critical variable. A “review” that consisted of reading the supervisor’s memo and agreeing with it is not an independent investigation. A thorough review — with independent fact-finding, consideration of the employee’s perspective, and an evaluation that went beyond the supervisor’s characterization — may break the chain.
Why this matters for employees
Many employees are fired by someone who has no apparent bias — an HR director, a senior executive, a committee. The employee’s first thought is: “The person who fired me wasn’t discriminating.” But the question is not whether the decision-maker was biased. The question is whether the decision was infected by someone else’s bias.
If the employee’s immediate supervisor — the person who wrote the reviews, who controlled the assignments, who shaped the narrative — had a discriminatory motive, and that supervisor’s input drove the termination decision, the decision-maker’s neutrality does not save the employer. The bias found its way into the decision through the supervisor’s recommendation. The cat pulled the chestnut from the fire.
If the person who made the termination decision had no discriminatory motive — but the person who recommended the termination did — the bias may still taint the decision. The cat’s paw doctrine holds employers liable when a biased supervisor’s input drives a neutral decision-maker’s action. The question is not who signed the termination letter. It is whose bias shaped the decision that produced it.
This article is general information about California law and is not legal advice. Every situation turns on its particular facts.