Quoted from vicjw66:
Certainly there are voice actors out there that could sound pretty close to original. It would not surprise me if Jack used friends or relatives to do those voices to save money.
It's a licensed product...you don't get to hire your friends and family to do voices for licensed products. Like them or not, those are the voice actors WB chose and/or approved of. Doesn't mean they made the right choice. Listen to the terrible voices on X-Men or the miscast voices on Avengers....both approved by Marvel.