Weirdest Age Discrepancy Between Characters and the Actors Who Play Them

Most of the adults cast in the Harry Potter movies as Lily and James’ contemporaries are way older than they should be.

To some extent this can be handwaved away as a difference between the books and the movies. In the books you can work out that the Potters must have been in their early 20s when Harry was born, but since the movies don’t give their ages then they might easily have been several years older. Alan Rickman is still obviously old enough to be Daniel Radcliff’s grandfather, but if we imagine that the Potters were closer to 30 when Harry was born then the actors cast as the other Marauders aren’t THAT far off.

That doesn’t really count, as there’s no reason a new show has to follow the chronology of an older one. In fact, there’s no reason to assume a show follows our chronology. Time can work differently in the shows universe: see Comic Book Time.

I don’t think it should count unless the person is expressly said to be a certain age. And it should be based on what age the character is supposed to look like. So stuff like Really Seven Hundred Years Old shouldn’t count, or, at least, should be a separate category.

From IMDB’s trivia on The Man Who Shot Liberty Valance:

If only someone had mentioned this earlier!

If only someone had mentioned this earlier!

(What the hell, am I posting in invisible ink or something?)

In the 1974 disaster movie Earthquake, Loren Greene played Ava Gardner’s father, even though he was only 7 years older than her (and 8 years older than his son-in-law, Charlton Heston).

Hobbits mature at age 33, and so should look 20-something at 40. They live to an average span of 100, which is more than human-scaled, especially for a pre-industrial society.

Aragorn is decended from elves and humans, but the rest of the Dúnedain were not, except those in Aragorn’s family tree. The Dúnedain were the remnants of the fallen kingdom of Arnor, who were decended from Numenorians who were decended from the Edain, who were given the island of Numenor and a lifespan thrice that of other Men as a reward for their participation in the War of Wrath at the end of the First Age.
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For the OP: any show on Teen Disney features young actors and actresses playing characters much younger than themselves, and its not at all unusual to see someone in their 20’s playing a high school kid or even younger.

Also, Daniel LaRusso in the first Karate Kid movie was played by Ralph Macchio at age 23.