The exact origin of card throwing is relatively unknown. However, western card throwing can be traced back to the late 19th century by magicians on stage. It was first made famous by Alexander Herrman and Howard Thurston in their stage performances during their time. Considering that they used heavier cards back in the day compared to modern playing cards and that their techniques are still be used and changed to this day, they can probably be considered the fathers of card throwing.
You know he's awesome when his little demons whisper unkind things into his ears.