The Marvel Cinematic Universe has evolved in a number of major ways in its decade-long existence. This has involved introducing new characters with every new film and expanding to explore new elements of the overarching Marvel story. However, that also involves leaving certain characters behind.
On that note, and now that Avengers: Infinity War is doing insane work at the box office, we have put together a list of long-gone MCU characters that we don't expect to see return to this franchise anytime soon. We have several to get to, so let's start things out with Jane Foster's spunky sidekick.
Though Marvel seems to have finally found its stride in its efforts to make Thor a comedic character, the pre-Thor: Ragnarok MCU films largely relied on funny supporting characters to play off of the God of Thunder. In that regard, Kat Dennings' Darcy Lewis stands out as one of the most notable of the bunch, but we haven't seen her since 2013's Thor: The Dark World. The political science major was one of the first people (along with Jane Foster and Erik Selvig) to meet Thor Odinson, but something tells us that we shouldn't get our hopes up about seeing her again anytime soon.
'Thunderbolt' Ross (William Hurt) may have returned to the Marvel Cinematic Universe with the releases of Captain America: Civil War and Avengers: Infinity War, but his daughter has remained notably absent from the MCU since 2008's The Incredible Hulk. Betty Ross (Liv Tyler) is the beloved love interest of Bruce Banner in the comics and in the first MCU Hulk movie, but it looks like the franchise has mostly moved on from her. After all, with Hulk and Black Widow (Scarlett Johansson) now an item (sort of), there's not much room for Betty in the equation. It seems that she's retired with Ty Burrell's Leonard.