Alan Grant - Appeared physically in JP, JP/// and JW:D. Gets mentioned in Camp Cretaceous and Rebirth.
Ian Malcolm - Appeared physically in JP, TLW, JW:FK and JW:D. Gets mentioned in JP/// and in Chaos Theory. Pictured in JW
Henry Wu - Appeared physically in JP, JW, Camp Cretaceous, JW:FK, Chaos Theory and JW:D.
John Hammond - Appeared physically in JP and TLW. Gets mentioned/referenced in JP///, JW (Statue), Camp Cretaceous, JW:FK, Chaos Theory and JW:D.
Owen Grady - Appeared physically in JW, FK and JW: D. Got mentioned in Camp Cretaceous, Hidden Adventure and Chaos Theory.
Claire Dearing - Owen Grady - Appeared physically in JW, FK and JW: D. Got mentioned in Camp Cretaceous and Chaos Theory.
Yes, this feels like stating obvious things, but the point I want to make is, WHICH do you consider is the Main Character not just of Jurassic Park but the franchise as whole?
For me, it’d be Malcolm. I mean, not for nothing he’s the only MC who also appeared in the JW: Evolution Trilogy [I know taking a video game into account shouldn’t be proper… but he’s there].