Which superstars from current roster have held the WWE Title?

AJ Styles was the WWE champion for a good number of days. He won the title by beating Jinder Mahal.

Source: wwe.com

Drew McIntyre became the World Champion by beating none other than Brock Lesnar.

Source: wwe.com

Seth Rollins is the current WWE Heavyweight champion. He has held the WWE title before.

Source: wwe.com

CM Punk was a WWE champion for a record number of days. His reign breached the 400 days mark.

Source: WWE

Roman Reigns is the current WWE Universal champion. He is the Grand Slam champion in WWE.

Source: wwe.com