Melisa Joan Hart from Sabrina the teenage Witch
With 'Hold It Against Me' I believe it's 32 music videos, I believe. But that is just music videos not Documentaries or concert tour videos.
I would imagine, due to the lyrics.
American actor Stephen Dorff (Blade) plays Britney's boyfriend in the "Everytime" music video.
The 'Motorcycle Man' in the "Toxic" music video is actor and Ralph Lauren model Tyson Beckford.