Is Starlight glimmer a main character?

Related questions

1. What is Pinkie Pie's real name?
2. How did my little pony start?
3. What is Starlight Glimmer's cutie mark?
4. What is a unicorn Pegasus called?
5. Who is Scootaloo related to?
6. What is Starlight Glimmer's element?
7. What type of pony is fluttershy?
8. What are the elements of harmony?
9. Is Twilight Sparkle a princess?
10. Where is the tree of harmony?

Tags

1. #initially
2. #glimmer
3. #series
4. #antagonist
5. #little
6. #female
7. #premiere
8. #character
9. #explicitly
10. #season
11. #later
12. #forever
13. #recurring
14. #possibly
15. #unicorn
16. #protagonist
17. #starlight
18. #appears
19. #issue
20. #friends
21. #first