I'm no expert but I have seen it 11 times. The only person is young nala and the elephant at the beginning and end numbers. I believe that's it. I remember reading an article about how Mufasa stays backstage 2nd half and how Simba waits the first half.
2008 European Tour
London: Les Mis, Lion King, Sound of Music, Joseph, Hairspray, Billy Elliot
France: Le Roi Lion, Cabaret
Germany: Der Konig der Lowen
Holland: Tarzan & Les Mis