Damian Mackle

Damian Mackle

Known for
Acting
Born
February 20, 1985 (age 41)
Birthplace
Belfast, Northern Ireland

Biography

Damian Mackle is an Irish professional wrestler. He is best known for his time in WWE, where he performed under the ring name Killian Dain and since his departure from WWE he has reverted back to his ring name on the independent circuit Big Damo. That ring name Big Damo is derived from his first ring name, Damian O'Connor. Prior to joining WWE, he won the ICW World Heavyweight Championship while wrestling for Insane Championship Wrestling. He also wrestled for numerous promotions on the British independent circuit, around Europe, and in the USA including All Elite Wrestling, Progress Wrestling, Revolution Pro Wrestling, Westside Xtreme Wrestling, Absolute Intense Wrestling, Beyond Wrestling, Premier British Wrestling, Scottish Wrestling Alliance, What Culture Pro Wrestling and IPW:UK. On 19 October 2016, WWE announced that Mackle had signed a developmental contract with the company and had arrived at the WWE Performance Center in Orlando, Florida. He began to work in the NXT brand as part of the stable Sanity, along with Nikki Cross, Eric Young and Alexander Wolfe. In 2018, Dain, Wolfe and Young were drafted to SmackDown, where they worked as a stable until the dissolution. Then, he was drafted again to NXT, where he stayed until his release, in June 2021.

Known For

Filmography

2026
PROGRESS Chapter 193: PROGRESS Las Vegas II poster

PROGRESS Chapter 193: PROGRESS Las Vegas II

Movie · as Big Damo

2025
WXM Ground Zero poster

WXM Ground Zero

TV · as Big Damo · 5 eps

2023
PROGRESS Chapter 152: For The Love Of PROGRESS poster

PROGRESS Chapter 152: For The Love Of PROGRESS

Movie · as Big Damo

2023
RevPro Revolution Rumble 2023

RevPro Revolution Rumble 2023

Movie · as Big Damo

2022
NJPW Music City Mayhem poster

NJPW Music City Mayhem

Movie · as Big Damo

2022
PROGRESS Chapter 145: Wrestling Witch Face - Trick Or Treat poster

PROGRESS Chapter 145: Wrestling Witch Face - Trick Or Treat

Movie · as Big Damo

2022
Ric Flair's Last Match: Preshow poster

Ric Flair's Last Match: Preshow

Movie · as Big Damo

2020
Ospreay: The Rise of an International Pro Wrestler poster

Ospreay: The Rise of an International Pro Wrestler

Movie

2020
QuizzleMania poster

QuizzleMania

TV · as Big Damo · 2 eps

2019
NXT TakeOver: WarGames poster

NXT TakeOver: WarGames

Movie · as Killian Dain

2019
WWE Best of NXT TakeOver 2018 poster

WWE Best of NXT TakeOver 2018

Movie · as Killian Dain

2018
NXT Takeover: New Orleans poster

NXT Takeover: New Orleans

Movie · as Killian Dain

2018
NXT: Best of 2017 poster

NXT: Best of 2017

Movie

2018
WWE Extreme Rules 2018 poster

WWE Extreme Rules 2018

Movie · as Killian Dain

2017
WWE WrestleMania 33 poster

WWE WrestleMania 33

Movie · as Killian Dain (Preshow)

2017
NXT Takeover: Orlando poster

NXT Takeover: Orlando

Movie · as Killian Dane

2017
NXT TakeOver: WarGames poster

NXT TakeOver: WarGames

Movie · as Killain Dain

2017
NXT Takeover: San Antonio poster

NXT Takeover: San Antonio

Movie · as Killian Dain

2017
WWE NXT Takeover: Chicago poster

WWE NXT Takeover: Chicago

Movie · as Killian Dain

2017
NXT TakeOver: Brooklyn III poster

NXT TakeOver: Brooklyn III

Movie · as Killian Dam

2016
PROGRESS Chapter 26: Unknown Pleasures

PROGRESS Chapter 26: Unknown Pleasures

Movie · as Damian O'Connor

2016
RPW: Epic Encounter 2016

RPW: Epic Encounter 2016

Movie · as Big Damo

2016
RPW: Sittingbourne Spectacular 2016

RPW: Sittingbourne Spectacular 2016

Movie · as Big Damo

2016
RevPro Uprising 2016 poster

RevPro Uprising 2016

Movie · as Big Damo

2016
RevPro: Angle Vs. Sabre Jr. poster

RevPro: Angle Vs. Sabre Jr.

Movie · as Big Damo

2016
TNA One Night Only: Joker's Wild 4 poster

TNA One Night Only: Joker's Wild 4

Movie · as Big Damo

2016
RevPro High Stakes 2016 poster

RevPro High Stakes 2016

Movie · as Big Damo

2015
ICW Fear & Loathing VIII

ICW Fear & Loathing VIII

Movie · as Big Damo

2015
RevPro Summer Sizzler 2015

RevPro Summer Sizzler 2015

Movie · as Damian O'Connor

2015
RPW: At Our Best 2015

RPW: At Our Best 2015

Movie · as Damian O'Connor

2015
RevPro & NJPW: Global Wars UK

RevPro & NJPW: Global Wars UK

Movie · as Damian O'Connor

2015
RevPro Uprising 2015 poster

RevPro Uprising 2015

Movie · as Big Damo

2015
ICW Fight Club poster

ICW Fight Club

TV · as Big Demo · 1 ep

2012
EVE Special Edition poster

EVE Special Edition

Movie · as Damian O'Connor

2010
WWE NXT poster

WWE NXT

TV · as Big Damo, Killan Dain, Killian Dain, Killian Dame, KIllian Dain · 2 eps

1999
WWE Friday Night SmackDown poster

WWE Friday Night SmackDown

TV · 12 eps