Most releases feature English and French audio tracks. Because it is a Franco-Canadian production, some versions may have burned-in subtitles for specific scenes, but a full English subtitle track is not universal across all home media formats.
Finding English subtitles for the 2008 miniseries XIII: The Conspiracy can be surprisingly difficult depending on the version you obtain. While the production is officially in English, some physical releases lack subtitle options entirely. Subtitle & Availability Review XIII: The Conspiracy subtitles English
Critics and viewers have mixed feelings about the show's clarity and pacing, which can make reliable subtitles even more important for following the dense conspiracy plot. Most releases feature English and French audio tracks