In an Agile team, the role that includes the end users of a product is typically the stakeholders. Stakeholders can encompass a variety of individuals or groups who are affected by the product, including end users, customers, and anyone else with an interest in the project.
The product owner is a specific role within the Agile framework that represents the stakeholders' interests and is responsible for defining the product backlog and prioritizing features. The team lead (often referred to as the Scrum Master in Scrum) facilitates the team's process but does not typically represent end users.
So, the correct answer is stakeholders.