Dragon Ball Z voice actors?

I have been watching DragonBall online and I finally finished so I started on DBZ but when I went to the first episode all the voices sounded way off from dragon ball. I thought that maybe its a different companys dub but im not sure cause I tried to put in DBZ Funimation Dub episode one and I kept on getting the same episode with the weird voice acting. The little part where they show the title name is different from the dbz i remember it doent have the music and the dragon arnt even there. Could someone tell me what is going on cause i never watched the early saiyan saga episode and if it is a different dub could someone tell me where i could find the funimation dub online.