Can You Add New Defendants After a Slip-and-Fall in Ontario?

Can you sue individual employees after a slip and fall in Ontario?

Yes — but only if you can point to specific wrongful acts that the employee personally committed, not just their general role at the company. Ontario courts apply a strict standard before allowing individual employees to be named as defendants in a personal injury lawsuit. A recent Superior Court decision makes that standard very clear.

In Huang v. T&T Supermarket, 2026 ONSC 4268 (CanLII), the plaintiff sought to amend the statement of claim to add several individual employees of T&T Supermarket as defendants following a slip-and-fall incident. The court dismissed the motion on multiple grounds. Understanding why can help you protect your own claim.

What does it take to plead a case against an employee personally?

Your pleadings must contain actual material facts — not just conclusions — that show the employee did something independently wrongful. Ontario’s rules of pleading require more than saying an employee “was responsible” or “failed to act.” You need to describe what that person specifically did or failed to do, and why that conduct amounts to a tort separate from the employer’s liability.

The court applied the principle from Kraik v. Ungar: an employee’s personal liability requires either an independent tortious act or circumstances where the employee’s identity is truly distinct from the employer’s. Bald, conclusory allegations — statements that simply assert wrongdoing without backing them up with facts — are not assumed to be true and will not survive a pleadings challenge. The court found that the proposed amendments fell well short of this minimum threshold.

What is the limitation period for adding new defendants in Ontario?

Ontario’s Limitations Act, 2002 sets a two-year discovery period for most civil claims, and that clock runs separately for each defendant you want to add. Under section 21(1) of the Act, a court cannot add a party after the limitation period against that party has expired.

The court here found that the limitation period had likely run against at least some of the proposed individual defendants before the motion was brought. Even where the timing was arguable, the court considered the discoverability principles from Grant Thornton and earlier cases and was not satisfied the plaintiff could overcome the limitation bar. This is a critical lesson: if you believe multiple parties may be responsible for your injuries, you need to identify them and act quickly.

Does a court have discretion to refuse adding parties even if the claim is otherwise valid?

Yes. Even where a pleading might technically survive other challenges, a court can still refuse to add parties under Rule 5.04(2) if doing so would cause unfair prejudice or significantly complicate the proceeding. In this case, adding multiple individual employees would have expanded discoveries, delayed the hearing, and created procedural complications that outweighed any benefit to the plaintiff.

This discretionary power is not exercised lightly, but it is real. Courts balance the plaintiff’s right to pursue all responsible parties against the practical fairness concerns of defendants who would be drawn into litigation late in the process.

Why are vague pleadings so dangerous in personal injury cases?

Vague pleadings can sink your case before it ever gets to trial. Ontario courts apply what is sometimes called the “plain and obvious” test: if it is plain and obvious that the pleading discloses no reasonable cause of action, the claim or amendment will be struck. The court in this case followed the standards set out in Das v. George Weston and Knight v. Imperial Tobacco, both of which confirm that bare assertions of liability are not enough.

This matters practically because plaintiffs often learn more about who was involved in an incident as the case progresses. But you cannot wait indefinitely to formalize those allegations. The pleadings you file must be grounded in specific facts from the start, or at least as soon as those facts become known to you.

Practical takeaways for injured plaintiffs

• Act quickly to identify all responsible parties. The two-year limitation period runs against each defendant separately. If you suspect an employee or manager was personally at fault, raise this with your lawyer as soon as possible.
• Gather specific evidence about individual conduct. Incident reports, surveillance footage, and witness statements that identify what specific individuals did or failed to do are essential if you want to name them personally.
• Do not rely on general allegations. Saying someone “was negligent” or “failed in their duty” without supporting facts will not survive a pleadings challenge in Ontario.
• Understand the difference between employer and employee liability. Your claim against a corporate defendant is separate from any claim against individual employees. One can survive even if the other fails.
• Consult a lawyer before amending your claim. Adding parties or amending pleadings after a lawsuit is underway involves procedural rules and limitation period risks that require careful legal advice.

If you have been injured in a slip and fall or similar incident and are unsure whether you can pursue individuals as well as a company, our Ontario litigation lawyers can review your situation and help you understand your options.

For clients in the Greater Toronto Area and surrounding communities, our team also assists clients through our Mississauga litigation office and Toronto litigation office, offering accessible support across the region.

UL Lawyers offers a free initial consultation from our Burlington office and serves clients across Ontario. If you have questions about a personal injury claim or need help navigating a complex pleadings issue, reach out to our civil litigation team to get started.

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This article is automated commentary on a public court decision and is for general information only — not legal advice. Decisions rely on facts unique to each case. If you are affected by a similar issue, contact a lawyer for advice specific to your situation.