[15] While working in Puerto Rico, Ouellet was offered a try-out with the World Wrestling Federation, and he signed with the promotion later that year.

They were defeated by 1-2-3 Kid and Marty Jannetty on January 10, 1994, and again by Men on a Mission on March 29 (during a tour of England) but each time regained the titles within days.

Pierre defeated Intercontinental Champion Razor Ramon by count out on October 2, 1994, at a house show in Cornwall, Ontario.

[3][16] During the rest of 1994 and early 1995, Pierre continued to work in dark matches and house shows wrestling against Bob Holly, and Aldo Montoya.

In September 1995, Ouellet's WWF career was allegedly derailed due to legitimate conflict with The Kliq, a backstage group including main-event wrestlers Shawn Michaels and Diesel.

[21] In September 1996, Ouellet reunited with Jacques Rougeau and moved to World Championship Wrestling (WCW), where the duo was known as the Amazing French Canadians.

After Harlem Heat defeated the Amazing French Canadians at World War 3 on November 24, 1996, Sherri won the right to fight Parker for three minutes.

In July 1999, Ouellet - along with other WWF employees such as Bart Gunn and Vader - worked for All Japan Pro Wrestling as part of a talent loan.

[25] Ouellet and Rougeau had a second run in WCW in August 2000, briefly joining Team Canada at the New Blood Rising pay-per-view.

He headlined an event in the Verdun Auditorium in Montreal on December 29, 2000, facing King Kong Bundy in front of an audience of 4,000.

In November 2003, Ouellet debuted in NWA Total Nonstop Action as "X", a masked[16] wrestler who competed primarily in the X Division as he had a feud with Christopher Daniels and Sonjay Dutt.

Ouellet also wrestled for All-Star promotions in Britain alongside his friend and tag team partners Rene Dupree.

Ouellet has mainly been working a lot of Tag Team matches with Rene Dupree, Robbie Dynamite, Hannibal and Mikey Whiplash.

He defeated Sylvain Grenier in an RDS battle on June 21, 2008, in Hawkesbury, Ontario Canada with Marc Blondin serving as the special referee.

He then defeated long-time rival Kevin Nash on May 30, 2009, at the International Wrestling Syndicate's 10th Anniversary show by making him submit via an armbar.

[28] On May 21, 2016, Ouellet made his return to professional wrestling at an MWF event, entitled "Collision," in Valleyfield, Quebec, Canada, defeating Jake Matthews, following a cannonball.

On November 5, 2017, Ouellet, as "Quebecer" Jean-Pierre Lafitte, defeated Hannibal to win the Great North Wrestling Canadian Championship in Rockland, ON.

[32] On April 2, 2018, Ouellet defeated Walter at Game Changer Wrestling's (GCW) Joey Janela's Spring Break 2 in New Orleans.

Ouellet's performance and online footage of his unconventional workout regimen impressed the independent wrestling audience, and led to many higher-profile bookings.

[6][33][34] On June 18, 2018, Ouellet was announced as the first of twenty-four participants for Pro Wrestling Guerrilla's (PWG) annual Battle of Los Angeles tournament.

At 2018 Battle of Los Angeles – Stage One on September 15, he made his company debut, losing to Brody King in the Opening Round.

[35] He debuted for ROH at the December 15 tapings joining up with Marty Scurll and Brody King in a new stable called Villain Enterprises.

[42] PCO would then compete in a Four Corner Survival match to determine the #1 contender for the ROH World Championship which was won by Jeff Cobb.

At Death Before Dishonor XVII, PCO defeated Kenny King in a First-round match in the Final Battle ROH World Championship #1 contender tournament.

At Glory By Honor XVII, PCO defeated fellow member of Villain Enterprises Marty Scurll in the finals of the tournament to become the #1 contender for the ROH World Championship.

At Hard To Kill, on January 8, 2022, PCO made his return to TNA, now known as Impact Wrestling, appeared along with Matt Taven, Vincent, Mike Bennett, and Maria, attacking Eddie Edwards, Rich Swann, Willie Mack, Heath and Rhino.

[49] On October 24, with Impact rebranding themselves under the revived Total Nonstop Action Wrestling name entering the following year,[50] PCO was announced as the first signee of its new area.

The two went on to eat black spaghetti before being interrupted by First Class (reigning TNA Digital Media Champion, A.J Francis, and Rich Swann).

On January 19, 2025, PCO appeared at the Game Changer Wrestling event "The People vs. GCW", winning a Rumble match.

[54] Journalist Dave Meltzer suggested that PCO was disgruntled due to TNA having rescinded a contract offer, then asked him to lose the title in his final appearance.