5. Chris Jericho
The King of the World as Y2J dubbed himself several years ago is still wrestling on a regular basis. Jericho is also the first known mentor Barrett had in WWE. Jericho worked with Barrett to win the first season of NXT. Five years later, the student needs help to learn and when the pupil is ready, the master will reappear.
Jericho is no stranger to tag team wrestling. His returns are to always put over young and established talent. His presence in the tag team division would be the perfect scenario for Jericho to do well and for King Barrett to learn how to take his skills, build serious momentum and ascend to the next level.