If you have a physical copy or a digital file without built-in subs, you can often find fan-made or ripped subtitle files (.srt) on dedicated databases:
The original language, available as standard subtitles or for the hearing impaired. Agent Hamilton (2020) subtitles
Lists Swedish and English (Always On) as available audio and subtitle options. If you have a physical copy or a
Includes English subtitles, specifically through the MHz Networks studio channel. Agent Hamilton (2020) subtitles
Offers both seasons 1 and 2 in Swedish with English subtitles .
Widely available as "English Subtitles" or "English [CC]" for international audiences.
The following platforms provide official subtitles for the series: