The Ultimates 3: Who Killed the Scarlet Witch?, initially published simply as The Ultimates 3 or Ultimates 3, was a five-issue monthly American comic book miniseries published in 2008 by Marvel Comics in the Ultimate Marvel imprint. Written by Jeph Loeb, and illustrated by Joe Madureira, it is a sequel to The Ultimates and The Ultimates 2, as well as a prelude to Ultimatum. A sequel entitled Ultimate Comics: New Ultimates, also written by Loeb, was released in 2010. The series continues the stories of the Ultimates.