Keep in mind if there is an age it means that's how old the actor is. Not the age of the character in the movie. I'm not allowing people to add on to this list because you can only put in one picture. If you think a character should be on this list, you should make a comment. I'm planning on adding onto it.
http://www.ranker.com/list/the-best-old-and-young-versions-of-fictional-characters/stokified,
Forrest Gump
Around age 10
18 years old (in the movie)
38 years old
Bruce Wayne (Batman)
10 years old
31 years old
Indiana Jones
17 years old
40 years old
64 years old
Magneto
14 years old
33 years old
61 years old
Vito Corleone (Godfather)
31 years old
48 years old
Professor X
12 years old
24 years old
60 years old
John Connor (Terminator)
14 24 35 ?
Colin Sullivan (The Departed)
Around 10 years old
36 years old
William Wallace (Braveheart)
Around 10 years old
39 years old
Mysitque
10 years old
21 years old
28 years old