Here are some YouTube Videos of Marc:

Marc performing in MidLife: The Crisis Musical
https://www.youtube.com/watch?v=8p1dWVPD4HA

Marc with TIGER - reaching kids thru theatre
http://www.youtube.com/watch?feature=player_embedded&v=kRBkokd5lNM

Marc as an Evil Pirate in a kids TV pitch video:
http://www.youtube.com/watch?v=X5foPtrAn0E

Marc as President Franklin Pierce singing: "If I Only Had You"
http://www.youtube.com/watch?v=nzCVi8BpS0k