One of the best weight gains I've seen so far it's Antonio de la Torre, a Spanish actor who gain 33 kg/72 lbs in order to play a character in the spanish film "GORDOS".
He went from 75 kg/165 lbs to 108 kg/238 lbs in just for 4 months, a truly gainer in action if you ask me.
For 4 months he went on binged-eating mode and grow that spherical fur belly you can see.
Going from this thin, fine, good-looking man ...
To this sloth, mammoth, greasy, lard man.
And to make it more pathetic, he's character was the lead figure of a promotional that sells pills to lose weight!!! What a trully shame being that fat! Such a pity he lost weight during the film and we didn't get to see more scenes like this one:
A gluttonous man rubbing his distended gut, what a sight, breathtaking, isn't it?
But I think we can all agree that he looked absolutely stunning!! Maybe one day he'll end up growing again, hope this time for ever ;)