Lifeguards: Tyler, Brody, Ross, Markus, Luke, Matt, Brett, and Blake.
New Lifeguards: Bobby, Vinny, Lyle, Scott, Xavier, Andres, Mason, Austin, Jon, Ricky, Brandon, Cliff, Chad, and Trevor.
For a lineup for all the lifeguards: https://coiledfist.org/gallery/Shrink-and-Swim/fulllineup?full=1
Side Characters: Hunter, Tank, Dylan, Kendrick, Daniel, Eric, Cody, Officer Sean, Officer Hector.
New Characters: ???