[1] After participating in the reality show WWE Tough Enough in 2002, Layne began a career in professional wrestling as Kenny King.

He defeated former The Real World cast member (and future Tough Enough contestant) Mike Mizanin in what was promoted as a "reality television match".

[3] He was used as a jobber both in singles and tag team competition, losing to wrestlers including Ron Killings, Lance Hoyt, and Monty Brown.

He was part of the "Young, Rich and Ready For Action" (The YRR) stable with Chasyn Rance, Sal Rinauro, Steve Madison, Claudio Castagnoli and Daffney.

On November 9, 2007, King and Jason Blade won the FIP Tag Team Championship by defeating the Briscoe Brothers (Jay and Mark).

[3] King made his Ring of Honor (ROH) debut at Motor City Madness 2007 on September 14, 2007, alongside his YRR teammate Chasyn Rance, when they defeated Mitch Franklin and Alex Payne in a tag team match.

[11] Over the next several months, King competed in tag team matches with some combination of Rance, Sal Rinauro, and Jason Blade to varying degrees of success.

[11] At Age of Insanity in August 2008, King challenged Danielson again, but was again unsuccessful, and he went on to lose to Kevin Steen at Night of the Butcher II and Jerry Lynn at Glory by Honor VII.

[11] King lost to Danielson once again in singles competition at Contention, and he and Titus were defeated by The Young Bucks at Manhattan Mayhem III.

[17] On December 18 at Final Battle 2010 the All Night Express defeated Adam Cole and Kyle O'Reilly, announcing their intention of becoming ROH World Tag Team Champions in 2011.

On September 17 at Death Before Dishonor IX, the All Night Express defeated the Briscoe Brothers in a ladder match to become the number one contenders to the ROH World Tag Team Championship.

[30] Later that same event, King was defeated by Zema Ion in the final Ultimate X match, which also included Mason Andrews and Sonjay Dutt.

[30] King returned to Impact Wrestling on July 26, when he was handpicked by TNA World Heavyweight Champion Austin Aries as the number one contender to Zema Ion's X Division Championship.

[35] On the December 6 episode of Impact Wrestling, King defeated Kid Kash and Zema Ion to become number one contender for the X Division Championship.

[39] On the January 10, 2013, episode of Impact Wrestling, King defeated Zema Ion to earn the right to face Christian York in a number one contenders match for the X Division Championship at Genesis.

[41] On the February 7 episode of Impact Wrestling, King unsuccessfully challenged Rob Van Dam for the X Division Championship in a three-way match, also involving Zema Ion.

[44] King made his first successful title defense on March 10 at Lockdown, defeating Christian York and Zema Ion in a three-way match.

[45] On the March 21 episode of Impact Wrestling, King defeated Sonjay Dutt and Zema Ion in a three-way match to retain the X Division Championship.

[47][48] On June 2 at Slammiversary XI, King lost the X Division Championship to Chris Sabin in a three-way Ultimate X match, also involving Suicide.

[49] King lost his rematch on the June 27 episode of Impact Wrestling, after he was pinned by an impostor Suicide (later revealed to be Austin Aries) in a three-way match, which also included then-champion Chris Sabin and removed him from the title contention.

The week after, King wrestled his first televised match in over six months against MVP which ended in a no-contest after the two started brawling, igniting a feud.

Over the next few editions of Impact, King became a member of the higher-card status of the roster, attacking people such as The Wolves, Bobby Roode and Eric Young.

King made a surprise return to ROH on September 18, 2015, at All Star Extravaganza VII, reuniting with his All Night Express partner Rhett Titus in a tag team match, where they defeated the Briscoe Brothers.

The Cabinet overcame Jason Kincaid, Leon St. Giovanni, and Shaheem Ali in the first round of the ROH World Six-Man Tag Team Championship tournament, only to meet defeat at the hands of A. C. H., Jay White, and Kushida.

The Cabinet was originally portrayed as something not be taken seriously, but in late 2016, the trio turned serious and renamed themselves "The Rebellion",[54] eventually also adding Shane Taylor as a member.

On September 22 at Death Before Dishonor XV, King defeated Kushida to win the ROH World Television Championship for the first time.

[57] On December 15, 2017, at Final Battle Kenny King lost the ROH Television Title in a Fatal 4 Way elimination match against Silas Young, Shane Taylor and Punishment Martinez.

In mid 2018, King began to make a slow heel turn, starting with cheating to beat Bullet Club member Marty Scurll.

On September 8 at Victory Road, King lost the championship to Tommy Dreamer in a Title vs. Career match, ending his reign at 55 days.

Layne appeared on the dating game show Baggage on March 9, 2011; he was one of three potential men for the female contestant to choose.