Future Trunks is a major character in Dragon Ball Z, an alternate-timeline version of Vegeta and Bulma’s son who travels back in time to warn the heroes about catastrophic threats. He is a calm, serious, and highly capable Super Saiyan fighter from a devastated future where the Androids destroyed most of humanity. His role in the series is to introduce the time-travel storyline, reveal the danger of the Androids and Cell, and support the main cast with powerful combat skills and crucial information.