Is Rossif Sutherland related to Kiefer Sutherland?

Rossif Sutherland and Kiefer Sutherland are both actors widely recognized inside and outside Hollywood, prompting frequent questions about whether they are related. The short answer is yes: they share the same father, Donald Sutherland, making them half-brothers. This family connection places them within a multi-generational acting lineage that includes spouses, children, and step-relatives. To clarify the specifics of their relationship, their professional paths, and the context of their shared surname, the following sections provide an evergreen, evidence-based overview grounded in publicly available information.