As often happens, the onscreen adaptation of various characters tends to be different than their comic book counter parts.
Check out a video comparing the Marvel movie and TV characters to what they look like in the comics.
Off the top of my head, I can’t really think of any character that looked that bad in a movie or even on TV. Is there any character that sticks out with you that Marvel got completely wrong?
Update: James Gunn’s Guardians of the Galaxy Nova Corps comes to mind as looking pretty bad.
Note: It looks like the video is sticking to the Marvel-owned properties as we all know Sony and Fox Studios have butchered their versions of the Marvel characters (Apocalypse, The Thing, Electro, Rhino, etc).