I kinda looked into these characters the other night but looked a little deeper tonight after seeing a you tubers video and found some interesting stuff. If someone want to check and see if that's them. Plus I don't know maybe someone else beat me to it.

David Hogg = Actor (The gun control Movement ramps up)

https:// www.imdb.com/name/nm9641890/?ref_=fn_al_nm_8

Emma Gonzalez = Actress

https:// www.facebook.com/profile.php?id=822190 Worked at (Eat our Feelings)

https:// www.facebook.com/eatourfeelings/?timeline_context_item_type=intro_card_work&timeline_context_item_source=822190&pnref=lhc

https:// www.imdb.com/name/nm5603200/?ref_=tt_ov_st_sm

https:// www.imdb.com/title/tt5491968/?ref_=nm_knf_t1

https:// www.imdb.com/title/tt5524934/?ref_=nm_flmg_act_1

Alex Wind = Actor

https:// www.imdb.com/title/tt8018926/?ref_=nm_flmg_arf_1

https:// twitter.com/al3xw1nd