Mark Helfrich portrayed Ash in X-Men: The Last Stand.
He also worked as an editor in X-Men: The Last Stand.
X-Men Movies Wiki
This wiki DOES NOT treat Logan (2017) as being an alternate timeline, but rather part of the revised timeline created as of X-Men: Days of Future Past. Any edits claiming Logan is its own timeline will be undone, and subsequent edits ignoring this might result in a block.
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Mark Helfrich portrayed Ash in X-Men: The Last Stand.
He also worked as an editor in X-Men: The Last Stand.