I support Hugh Jackman playing Jean Valjean, in spite of him being a baritone. I think he’s a great actor and a great singer, and he can play the part. I wouldn’t even be surprised if he could sing it in tenor. Russell Crowe as Javert, on the other hand, is giving me pause. A bit of googling revealed that he does, in fact, sing… but well enough to be Javert? I’m not so sure.