The Hageman Brothers

Dan and Kevin Hageman are the writers of the LEGO Ninjago: Masters of Spinjitzu series and assisted in the story of The LEGO Ninjago Movie. The Brothers Hageman have written every season of Ninjago except Season 7 and the TV special, "Day of the Departed."

Trivia

 * They have appeared three times in the series: in Season 3, Season 4, and Season 6.
 * Dan is the older brother.