Sandy's loyal best friend who travels to the surface with her. After being cloned into thousands of tiny versions by Sue Nahmee, his encouragement saves Sandy, and he is later fused back and uses a family whistle to call for help.
Core partners driving the mission to return Bikini Bottom to the ocean.
SpongeBob is the primary target of Sue's cloning experiments.
Mr. Krabs actively collaborates to restore SpongeBob after his cloning.
Squidward joins the effort to reconstruct SpongeBob from his cloned fragments.
Patrick assists in the physical fusion process to restore SpongeBob.