Vanessa Kirby you can find in "The Crown" (Season 1 & 2), but also more recently in the newest Mission Impossible films. Not who I would have guessed for Sue Storm, but I think she'll do a great job.
Ebon Moss-Bachrach is going to be great as Ben Grimm. I would suggest watching The Bear and while you're at it Andor (since you're already a Star Wars fan). I'm more excited for him than Pedro, and I really really like Pedro.
Joseph Quinn isn't a name I recognized, but he played Eddie (the DM) on the most recent season on Stranger Things. Which, knowing that, is actually a great choice.
