33 Ways to Write Stronger Characters

1. Give them a goal 
2. Give them a motivation (negative emotion, negative trait, positive emotion)
3. Give them purpose (do they create conflict or undergo emotional development?)
4. Give them a fear
5. Give them a flaw
6. Give them a history 
7. Give them a present story
8. Give them a personality
9. Give them interests
10. Give them a quirk
11. Give them a name
12. Give them a desire
13. Give them a love
14. Make them complex
15. Make them unique
16. Make them intelligent
17. Make them relatable
18. Male them fail
19. Make them suffer
20. Make them sweat
21. Find their sex
22. Find their perspective
23. Find their type
24. Find their language
25. Find their attitude
26. Find their happy place
27. Find their support
28. Find their gut
29. Find their bane
30. Find their refuge
31. Find their redemption
32. Find their glory
33. Find their story