Top longest screen time characters in Jurassic World? estimated by me: (this estimate may not accurate)

1. Claire Dearing (Bryce Dallas Howard): She doesn't appear in any dinosaur chase scenes in the first half of the film but she's still a very important character of the storyline in the first half of the film as well as the entire film. In the second half of the film, she appear in most dinosaurs chase scenes.

2. Owen Grady (Chris Pratt): He probably has shorter screen time than Claire in the first half of the film, while his screen time in the second half of the film probably as long as(or a little bit longer) Claire's screen time.

3. Zach & Gray (they probably has equal screen time)

4. Hoskins

5. Masrani

6. Indominus Rex

7. Blue & Delta & Echo

8. Lowery

9. Barry

10. Henry Wu

11. Vivian

12. Karen

13. Rexy

14. Zara

15. Charlie

16. The fat Indominus Rex paddock worker

17. Zach & Gray're father

18. Hamada

19. Gyrosphere Operator

20. Raptors paddock worker

21. Jimmy Fallon

22. Mosasaurus

23. ACU Trooper & ACU Gunner

24. Mosasaurus Announcer

25.Three investors (who met Claire and Wu)

26. Dying apatosaurus

27. InGen Contractor

28. Bearded Ingen soldier

29. The Indominus Rex paddock worker who wears blue uniform

30. The Ankylosaurus which was killed by Indominus Rex

31. The Pteranodon which attacked Zara in the water

32. Control Room Security Guard

33.Zach's Girlfriend