The antonyms for "dominant characters" are numerous and varied, depending on the specific context and usage. Some possible antonyms include subordinate, passive, weak, meek, shy, retiring, indecisive, unassertive, and timid. These traits are often associated with characters who lack confidence, assertiveness, and control, and who tend to fade into the background or follow others rather than take the lead. While some stories may feature these types of characters as protagonists or as supporting players, many narratives rely on dominant characters to drive the plot and provide conflict and drama.