What is mean mark callous?

Mark Callous, also known as The Undertaker, is a retired professional wrestler who is widely regarded as one of the greatest professional wrestlers of all time. He made his debut in the World Wrestling Federation (WWF, now WWE) in 1990 and went on to have a successful and iconic career in the sport.

During his time in the wrestling world, The Undertaker won numerous championships and accolades, including seven WWE World Heavyweight Championships and multiple Tag Team Championships. He also had an impressive undefeated streak at WrestleMania, winning 21 consecutive matches at the event.

Mark Callous was known for his intimidating and mysterious persona, as well as his signature move, the Tombstone Piledriver. He was also known for his longevity in the industry, as he wrestled for over three decades before retiring in 2020.

In addition to his in-ring accomplishments, The Undertaker has also been inducted into the WWE Hall of Fame and has become a prominent figure in the world of professional wrestling.