There are 3 seasons.
There is only one season of Phantom, there are however some extras in the form of an alternate version and a spin-off.
No there will be no fourth season of Danny Phantom.
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You can watch all parts of phantom planet on youtube or livevideo. Or you buy the episode on iTunes and watch it all at once.
maybe, rumors are the t there will be a 4th season, but no ones sure
I'm not sure about Avatar, but no, their not gonna make a new season of Danny Phantom. If you want to know how to help bring back Danny Phantom, you can go to my bio page or message board.
Their will be no more Danny Phantom
4th episode : "Phantom Traveler" .
In Season 2 of the series (Episodes 21-40)
The Phantom Freighter has 192 pages.
The Phantom-Fighter has 263 pages.
The Phantom of the Temple has 206 pages.