Just a few days before WrestleMania 36 in April 2020, the 21st class of the WWE Hall of Fame will be inducted.

We already know who the headliners will be, with 'The Animal' Batista being one of them.

The six-time world champion-turned Hollywood star will be joined by the collective unit of the nWo - Hulk Hogan, Kevin Nash, Scott Hall and X-Pac.

There is usually around six or seven inductees every years, and when each class is finalised, there's always superstars who fans feel are being hard done-by by WWE.

We will look at five names who really should be inducted within the next two years, and some deserved to go in a long time ago.

Owen Hart

Hart died in tragic circumstances in 1999, whilst performing for WWE under The Blue Blazer gimmick, and he was known as one of the greatest technicians of his time.

For years fans have clamoured for Hart's induction, but legal issues surrounding his widow Martha suing WWE for using his name, likeness and missing royalty payments came to light in 2010.

It was settled in 2013, and last year his brother Bret called for WWE to induct him, but Martha responded by saying she will refuse to work with the company to 'exploit Owen's image for commercial gain'.

We may never see Owen Hart in the Hall of Fame, but he really needs to be in there.

William Regal

The Brit has had so many issues in his career, but he's overcome them all, and not only was he a fantastic wrestler, but he is an important cog in WWE's direction nowadays.

Not only is he the on-screen GM for NXT, but he recruits new wrestlers from around the globe to train at the WWE Performance Center, and he's thought of as one of the most intelligent people in wrestling.

Regal won multiple titles in WWE and WCW, as well as being a manager and an authority figure in the early 2000s, and even though he's still on NXT on pretty much a weekly basis, he definitely deserves a place in the Hall of Fame some year soon.

Vader

Big Van Vader was unique in the fact that he was a 450-pound high-flying monster - and he was pulling off moves no other super heavyweight was capable of.

Vader was a huge deal in New Japan Pro Wrestling in the late 1980s, winning the prestigious IWGP World Championship before returning to the USA, joining up with WCW where he became their world champion too.

He made the jump to WWE in 1996 but he was never really booked like he should have been, and he returned to Japan in 1998 and then went to TNA Wrestling and the independent scene.

Vader was always received well in his cameo appearances for WWE since the turn of the millennium, but it was his monster run with WCW which makes him deserving of a place.

Christian

Every single year, there are calls for Captain Charisma to be inducted into the Hall of Fame - and he really does need to be in there.

Christian wrestled his last match in March 2014, but due to concussion-related issues WWE would no longer clear him to compete, but his legacy was ever-lasting.

A nine-time Tag Team Champion - seven of those reigns being with Edge - a Triple Crown AND Grand Slam Champion, and when he won the big one, the World Heavyweight Championship, in 2011, there was no more deserving moment for any superstar at that moment.

He may not be inducted in 2020, but SURELY 2021 is the year that Christian takes his place in the Hall of Fame.

Bam Bam Bigelow

It has been nearly 13 years since Bam Bam sadly passed away, but he was another big man, like Vader, who was a high-flyer and was doing things others couldn't.

He never won any titles in the WWF, but he was a major player in the Million Dollar Corporation, and main evented WrestleMania in 1995 against NFL player Lawrence Taylor.

Bigelow then became a huge part of the rise of ECW under Paul Heyman, and then departed for WCW in its later stages.

His posthumous induction is surely coming, as it should have done years ago, and he's as deserving of a place as the previous four names mentioned.