First Appearance: X-Men #4 (1964)
Affiliation: Avengers; formerly the Brotherhood of Evil Mutants
Powers: Superhuman speed.
Family: Scarlet Witch, his sister.
Quicksilver’s first allegiance is to his sister. In X-Men #4, he serves alongside Scarlet Witch in Magneto’s Brotherhood of Evil Mutants because she feels indebted to its leader. His presence among the X-Men’s enemies does not erase his conscience: even in that first appearance, there are actions he will not allow Magneto to carry out.
That early distinction is remembered in X-Men #5, where the review notes that the X-Men have not forgotten his help. Quicksilver is an adversary, but the stories have already given him a relationship with their heroes that is more complicated than simple hostility.
In X-Men #11, the siblings leave Magneto behind and return to Europe rather than enlist with the X-Men. Joining the Avengers in #16 becomes a separate choice, made after breaking with their former leader.
Life on the new team brings different tensions. Avengers #17 shows Quicksilver privately believing he should lead, just as Hawkeye entertains the same idea. His speed gives him a distinctive place in the field, but it cannot settle the question of how several independent personalities should work together.
The next reviewed mission, in Avengers #18, finds the group making progress under Captain America. Quicksilver and Scarlet Witch remain closely connected while contributing different abilities. His current story follows the adjustment from reluctant service under Magneto to membership in a team he has chosen. The important contrast is already visible: protecting his sister and following his own judgment matter more to him than obeying an organization simply because he belongs to it.
Selected Reviewed Appearances
Coverage: based on reviews published on Reviewing Comics as of October 23, 2026.
