Tang Shen, The Previous Avatar (16 years ago)
I’ve thought about it: According Tale of the Yokai, Tang Shen died 16 years ago, and April supposedly is 16 years old (let’s apply the law that TV Show characters don’t grow up during the show and April is always 16, don’t matter in which season). And heeding the Avatar Cycle, Air is before Water, so ….. it’s obvious who is Tang Shen (and a reason why I made Karai an airbender too).
Drawing with better quality:
http://redworld96.deviantart.com/art...-ago-691838111