Following the confirmation of Zoe Sladana's Gamora from "Guardians of the Galaxy" for the upcoming "Avengers: Infinity War" movie, another well-known actor from the hit HBO fantasy series, "Game of Thrones" will reportedly be joining the Marvel universe. Peter Dinklage, who plays Tyrion Lannister on the show, is said to be in talks to be part of the cast. 

Variety has reported that Peter Dinklage is "in early talks" to be joining the cast of the "Avengers: Infinity War" for a  "key role." Although there are no specific details as of this writing, Dinklage recently finished filming "Game of Thrones" Season 7, thus allowing him to record the first part of the Infinity War series

"Avengers: Infinity War" is likely to feature the first ever major showdown of Josh Brolin's Thanos against the Marvel heroes. He made his first appearance in the franchise on the post-credit scene of the first "Avengers" film. Earlier this week, Zoey Saldana's Gamora was reported to appear in "Avengers: Infinity War," since she is the former and favorite daughter of Thanos. However, details on their exact participation remain vague. 

This is not the first time Peter Dinklage has been involved or appeared in the Marvel Cinematic Universe. He joined Jennifer Lawrence, Micheal Fassbender and Hugh Jackman in "X:Men: Days of the Future Past" in 2014. He played the antagonist Bolivar Trask, a military scientist and head of Trask Industries.

"Avengers: Infinity War" will reportedly be released in May 4, 2018, while its untitled sequel will be released a year later on May 3, 2019. This marks the return of Chris Evans as Captain America and Robert Downey Jr as Iron Man. The film will also feature Benedict Cumberbatch as "Doctor Strange."