Peter Dinklage Joining 'X-Men: Days of Future Past'

Peter Dinklage
<p><em>Game of Thrones</em>&#39; <strong>Peter Dinklage</strong> makes a red-carpet cameo.</p>
Director Bryan Singer welcomed the "Game of Thrones" star via Twitter.

Peter Dinklage is joining the cast of X-Men: Days of Future Past, according to a tweet from director Bryan Singer.

"Officially like to welcome #PeterDinklage from #GameOfThrones to #XMEN #DaysofFuturePast Very very excited!" Singer tweeted Wednesday.

Dinklage, who plays Tyrion Lannister on HBO's Game of Thrones, joins returning castmembers from 2011's X-Men: First Class as well as actors who appeared in the original X-Men trilogy released from 2000-06.

PHOTOS: 'X-Men: First Class’ Style Gallery           

Days of Future Past, based on a 1981 story in Marvel Comics' Uncanny X-Men, will include both the 1960s First Class characters as well as a future version of the original trilogy characters. The original trilogy actors are said to appear primarily in scenes depicting a dystopian future.

First Class stars James McAvoy, Michael Fassbender, Jennifer Lawrence and Nicholas Hoult are on board for the film, while original series stars Hugh Jackman, Patrick Stewart, Ian McKellen, Anna Paquin, Ellen Page and Shawn Ashmore are also returning. 

Days of Future Past, from 20th Century Fox, is eyeing an April start date and is slated for a July 18, 2014, release.