#4 Dean Ambrose: The Lunatic Fringe
In 2014, Seth Rollins betrayed not only Roman Reigns but also his unhinged stablemate, Dean Ambrose. The Architect and Ambrose had a great feud after the breakup of the Hounds of Justice and finally reconciled at Summerslam 2017, sowing the seeds for a Shield Reunion later in the year.
While he's found decent success in the role, Ambrose has played the role of a babyface for far too long. A heel turn and subsequent feud with Rollins after his return from injury would allow the Lunatic Fringe to revitalise his character.
After all, Ambrose has all the attributes needed to play a great heel and will almost certainly produce more compelling television with Rollins.
Edited by anirudh.b