Have horses raced both flat and national hunt?

Leighton Aspell on Many Clouds

Maybe a stupid question, but the ages of the horses differs remarkably...

Answer: Many horses have competed in both flat and National Hunt races.

One recent example is Gusty Rocky (IRE) trained in Ireland by Patrick J Flynn.

The bay gelding has contested 7 flat turf races, winning 2 and 25 National Hunt races winning 3 hurdles and 1 National Hunt Flat race.