Casting decisions

In my cyber-bullying advert, I will only need one actor. They will be used for a shot where the person being bullied, is looking at the computer and logging into the social networking site. The other shots that I will need the actor for is the close-ups of their different emotions e.g. hand clenched, sad mouth, happy mouth, a thumbs up gesture etc. The person who I will be using throughout the filming of my advert is, Kenny Oliver.