Although there are many family-units featured in Gintama, a large number of them are single-parent families in the anime. Some of the major characters are orphans. Refer to footnote below for romaji name conventions used in this wiki. 
↑This wiki displays the romanised Japanese names following the kanji readings, i.e. family name first, followed by first name format. This is different from the usual convention of representing romanised names in first-name-followed-by-family-name in other publications. Contributors are requested to adopt this wiki's format of family-name-followed-by-first-name for all romanised Japanese names in order to be consistent with the kanji names.