Born and raised in Saskatoon, Saskatchewan he attended Walter Murray Collegiate Institute. As a teenager, Karolat travelled to Calgary, where he trained briefly with Stu Hart. He later began training with Red Bastien in 1986, and completed further training with Mando Guerrero. Mane began his career in 1986 under the name "Skywalker Nitron" in his native Canada. In 1987, he wrestled in South Africa, which resulted in an invitation to wrestle for Joint Promotions in the United Kingdom, where he arrived in November. The following year, he toured New Japan Pro Wrestling as "Gully Gaspar", teaming with "brothers" Billy and Barry and managed by KY Wakamatsu. He could also be seen in WCW occasionally as the bodyguard of the tag team Doom along with Woman late in 1989, specifically Starrcade 1989.
In 1990, Karolat began wrestling in Puerto Rico and toured with All Japan Pro Wrestling, where he participated in the World's Strongest Tag Determination League. He then joined the Mexican promotion Consejo Mundial de Lucha Libre.
In 1993, he signed with World Championship Wrestling, under the name "Big Sky" and teamed with Vinnie Vegas. After Vinnie left WCW to become Diesel in the WWF, Mane was left in limbo and left WCW by the end of the year. In 1994, he joined Herb Abrams' Universal Wrestling Federation and became the only UWF MGM Grand Champion, defeating Steve Ray to win the vacant title. After Abrams' death and eventual dissolving of the UWF in 1996, Mane retired.
In 1992, during his time within Mexico with Consejo Mundial de Lucha Libre, Mane made his film debut in Luchadores de las Estrellas playing the villain of the movie, El Vampiro Interespacial. While part of WCW, he auditioned for and received a part in the television series Smokey and the Bandit.
After retiring from wrestling, he appeared in numerous films, including X-Men (as Sabretooth), How to Make a Monster (as Hardcore), Joe Dirt, The Scorpion King, Troy (as Ajax), Hercules (as Antaeus), and The Devil's Rejects (in the uncredited role of Rufus). The role of Sabretooth was initially intended for Mane's former wrestling tag team partner, Kevin Nash, but was awarded to Mane due to Nash's scheduling conflicts. Nash would, however, get a small role in a later Marvel Comics film, The Punisher.
In 2007, he played the iconic starring role of Michael Myers in Rob Zombie's remake of Halloween. After winning the role, he noted that he consecutively watched seven of the eight Halloween films (excluding the third because Michael Myers does not appear) to better understand his character. He is the tallest actor (6' 9") to portray the character. In 2009, he reprised the role again in Rob Zombie's H2, becoming only the second actor to play Michael Myers more than once, and the only actor to play the role in consecutive films.
In 2010, he and his wife launched their own production company, Mane Entertainment. Their first feature, Compound Fracture, was released in 2013. Their newest production, Penance Lane, begins filming in 2016.
In 2016, Tyler will costar in Fuzz on the Lens Productions comedy/fantasy film Abnormal Attraction. He teams back up with Malcolm McDowell (Halloween), Leslie Easterbrook (Compound Fracture) and his wife Renae Geerlings.
He is married to actress Renae Geerlings.Finishing moves
Corner foot choke
Diving knee drop
Single arm choke on a laying opponent
"Magic and Ecstasy" by Ennio Morricone (NJPW)
"Howl In The Sky" by Biscaya (AJPW)
Universal Wrestling Federation
UWF MGM Grand Championship (1 time)