This is the first appearance of the character Yo-Yo Rodriguez from the Marvel comics (also known as Slingshot). In this live-action rendition, her first name is given as Elena and the "Yo-Yo" part is just one of Mac's many nicknames he seems to like giving the Inhumans.
When Bobbi breaks into the Australian delegate's hotel room safe, she finds a file on Eden Fesi. In the comics, Fesi is an Indigenous Australian with the power to bend time and space to create teleportation. His hero name is Manifold.
After Elena's capture, Hunter is flipping through a book among her belongings. "Futurism" by Giovanni Lista is about the avant garde art movement that is as much about redefining humanity in the face of emerging technology and circumstances as it is about art.
Hunter calls Lucio "Medusa," who is the Greek mythology monster who turns her enemies into stone and the Marvel comics character who's an Inhuman.
"Bouncing Back" originally aired on ABC on March 8, 2016, and according to Nielsen Media Research, was watched by 3.52 million viewers.