OK so the usual list of ISTJ characters starts with names like Eeyore from Pooh Bear and Calvin Coolidge, and Dwight from the office. None of these are inspirational, in fact I'm ashamed to be the same type as them, except maybe for Coolidge. These ones kinda suck. So let us throw around some better, more motivational and balanced figures.
Michael Sullivan from Road to Perdition as played by Tom Hanks
Captain John Miller from Saving Private Ryan also by Hanks
Obi Wan Kenobi from the Star Wars saga
Nick Carraway from The Great Gatsby
How about some female ISTJs, I can't really think of any right now but there's got to be some really great ones.
Please help to come up with more or disagree with these as you see fit