William Morrissey is an American professional wrestler currently signed to All Elite Wrestling (AEW) under the ring name Big Bill. He is best known for his tenure with WWE, where he performed under the ring name Big Cass, a shortened version of his previous name Colin Cassady. In WWE, he came to prominence for his partnership with Enzo Amore, whom he teamed with from 2013 to 2017. Together, they won the NXT Year-End Award for Tag Team of the Year in 2015. He was brought up to Raw alongside Enzo Amore the day after WrestleMania 32. He was later moved to the SmackDown brand, where he had a brief feud with Daniel Bryan, before being released by the company in June 2018. After leaving WWE, he resumed teaming with Amore (now known as nZo) on the independent circuit. He worked in Impact Wrestling under the name of W. Morrissey.
AEW Dynasty
Big Bill
2025
AEW Revolution: Zero Hour
Big Bill
2025
AEW ROH Global Wars Australia
Big Bill
2025
ROH: Final Battle
Big Bill
2024
AEW WrestleDream
Big Bill
2024
AEW All In: London
Big Bill
2024
AEW x NJPW Present Forbidden Door
Big Bill
2024
AEW Worlds End
Big Bill
2023
AEW Full Gear
Big Bill
2023
All Elite Wrestling: Collision
Big Bill · (10 episodes)
2023
All Elite Wrestling: Collision
'The Redwood' Big Bill · (5 episodes)
2023
AEW Double or Nothing
Big Bill
2023
AEW All Out
W. Morrissey
2022
IMPACT Wrestling: Rebellion 2022
W. Morrissey
2022
NEW The Return Of The Hardys
Caz XL
2022
Hey! (EW)
Big Bill · (1 episode)
2022
IMPACT Wrestling: No Surrender 2022
W. Morrissey
2022
IMPACT Wrestling: Hard to Kill 2022
W. Morrissey
2022
IMPACT Wrestling: Throwback Throwdown II
Eric "The Red" Wood
2021
IMPACT Wrestling: Turning Point 2021
W. Morrissey
2021
IMPACT Wrestling: Bound For Glory 2021
W. Morrissey
2021
IMPACT Wrestling: Victory Road 2021
2021
All Elite Wrestling: Rampage
(1 episode)
2021
All Elite Wrestling: Rampage
Big Bill · (3 episodes)
2021
IMPACT Wrestling: Homecoming 2021
2021
IMPACT Wrestling: Slammiversary 2021
W. Morrissey
2021
IMPACT Wrestling: Against All Odds 2021
W. Morrissey
2021
IMPACT Wrestling: Under Siege 2021
W. Morrissey
2021
Before the Impact
W. Morrissey · (1 episode)
2021
All Elite Wrestling: Dynamite
(3 episodes)
2019
All Elite Wrestling: Dynamite
W. Morrissey · (9 episodes)
2019
All Elite Wrestling: Dynamite
'The Redwood' Big Bill · (2 episodes)
2019
All Elite Wrestling: Dynamite
Big Bill · (18 episodes)
2019
WWE Money in the Bank 2018
Big Cass
2018
WWE Backlash 2018
Big Cass
2018
WWE Greatest Royal Rumble
Big Cass
2018
WWE SummerSlam 2017
Big Cass
2017
WWE Great Balls of Fire
Big Cass
2017
WWE Payback 2017
Big Cass (Preshow)
2017
WWE WrestleMania 33
Big Cass
2017
WWE Fastlane 2017
Big Cass
2017
WWE Best of Raw & SmackDown Live 2016
Big Cass
2017
WWE Royal Rumble 2017
Big Cass
2017
WWE Roadblock: End of the Line 2016
Big Cass (Preshow)
2016
WWE Survivor Series 2016
Big Cass
2016
WWE Hell in a Cell 2016
Big Cass
2016
WWE SummerSlam 2016
Big Cass
2016
WWE Battleground 2016
Big Cass
2016
WWE Money in the Bank 2016
Colin Cassady
2016
WWE Payback 2016
Big Cass
2016
NXT's Greatest Matches Vol. 1
Colin Cassady
2016
WWE Roadblock 2016
Colin Cassady
2016
NXT TakeOver: London
Colin Cassady
2015
NXT TakeOver: Unstoppable
Colin Cassady
2015
WWE NXT Live: From San Jose 2015
Big Cass
2015
WWE NXT
Colin Cassady · (9 episodes)
2010
WWE NXT
(1 episode)
2010
WWE NXT
Colin Cassidy · (2 episodes)
2010
WWE NXT
Big Cass · (3 episodes)
2010
TNA iMPACT!
(29 episodes)
2004
TNA iMPACT!
W. Morrissey · (5 episodes)
2004
Raw
Big Cass · (1 episode)
1993