Matthew Broderick
The voice of Adult Simba, known for films such as Ferris Bueller's Day Off and The Cable Guy. He has a pretty good singing voice as seen in
The Producers which actually had Nathan Lane (Timon) in it too so that makes things quite funny! Timon and Simba
and the funniest thing is - a deleted scene had Ernie Sabella (Pumbaa). It's a shame Matthew didn't provide Simba's singing voice though, i believe i read somewhere that he couldn't get the right singing voice or something like that but Cam Clarke did a good job. 
The Producers which actually had Nathan Lane (Timon) in it too so that makes things quite funny! Timon and Simba
and the funniest thing is - a deleted scene had Ernie Sabella (Pumbaa). It's a shame Matthew didn't provide Simba's singing voice though, i believe i read somewhere that he couldn't get the right singing voice or something like that but Cam Clarke did a good job. 

