4 John Locke
8 Hugo Reyes
15 Sawyer - James Ford
16 Sayid Jarrah
23 Jack Shepherd
42 Kwon (both or either Jin? Sun?)
Kate is not in. John Locke is now dead and Man In Black crossed out John Lockes name
Here is a link of a list of names that were crossed out and was also written on the cave walls. Jacob had a thing for numbers.
http://lostpedia.wikia.com/wiki/The_Numbers_Cave
DearLocke- When I saw this scene last night I panicked because I couldnt see names clearly on the cave unless i went back. But I knew the wiki would get ahold of it quickly