Sacky is the child of Sackboy and Sackgirl. He has his father's appearance. Despite being identified by the team as a male, Sacky is actually non-binary.
Sacky cheerfully greets the Rangers after they get stuck in the little big planet universe when the dimenionator finally breaks down for good. Sacky helps the team find materials to build a new Dimenionator in order to recruit the remaining Allstars. Raiden is all too happy to bring Sacky along as shown he developed a close friendship with Ada.
Sacky is very cheerful, mischievous, optimistic, and encouraging.
Trivia:
Sacky is named after the material he's made out of.
He's the only non-verbal member of the team who isn't a beast and communicates using chirps and facial expressions.
He's also the only non-binary member of the team.
