Cartoon Network Brings Back Classics With “Cartoon Planet” Starting Friday It Would seem another Block is coming this friday. --FOR THOSE WHO THOUGHT GEORGE LOWE WOULD BE RETIRING FROM VOICE ACTING, IT WAS A COMMON MISTAKE. HE'S ACTUALLY RETIRING FROM PLAYING THE ROLE OF SPACE GHOST.- Cartoon Planet is BACK! But sadly, Space Ghost won't be returning. George Lowe officially retired from doing his role (the final time he will be playing S.G. is for the new Aqua Teen movie) from what I heard. But at least, said "co-hosts" are now taking this position now. Hope this new Cartoon Planet will be just as good as the old one.