See the New Fantastic Four Next to Their Original Counterparts

Then: Ioan Gruffudd

Now: Miles Teller

Age: Gruffudd originated the part of Dr. Reed Richards when he was 31. At age 28, Teller is a little younger.

Pedigree: Gruffudd had a number of roles before he starred in Fantastic Four, but none supernotable. Miles Teller has been all over the genres, appearing in Footloose, 21 & Over, The Spectacular Now, That Awkward Moment, Divergent, and Whiplash. It's safe to say he can tackle action, too.

Then: Jessica Alba

Now: Kate Mara

Age: Alba was just 24 when she played Sue Storm, while Mara is 32.

Pedigree: At the time she signed on for the first movie, Alba had appeared in a number of high-profile projects, including Honey and Sin City. Mara starred on TV hits like House of Cards and American Horror Story, and she's also been on the big screen in 127 Hours and Transcendence.

Then: Michael Chiklis

Now: Jamie Bell

Age: At 42, Chiklis was substantially older at the time he played Ben Grimm than 29-year-old Bell.

Pedigree: Chiklis was (and still is) best known for The Shield, while Bell's been in the spotlight since his breakout role in 2000's Billy Elliot. He's been in a number of drama and action films since then, including the highly controversial Nymphomaniac.

Then: Chris Evans

Now: Michael B. Jordan

Age: Evans played Johnny Storm when he was 24, and Jordan isn't far off at 28 years old.

Pedigree: Evans had costarred in a few movies like Not Another Teen Movie and The Perfect Score before taking the role of Johnny. Meanwhile, Jordan starred alongside Teller in That Awkward Moment and earned critical praise for his role in 2013's Fruitvale Station. On top of that, he's got major TV cred for roles in Friday Night Lights and Parenthood.