Underhell Wiki
Terrance Mason

Voiced By

Joseph Bracken







Hair Color


Eye Color



  • British Army (formerly)
  • U.D.R.C. (formerly)
  • A.R.C.


  • Former Soldier
  • Chief of Security



  • Radio

Terrance "Terry" Mason is a character in Underhell, appearing as a main character in Chapter One.

Terry is Chief of Security of the A.R.C, and a father figure to Benjamin.



Terrance Mason served in the British Army for an unknown period of time, including the Falklands War in 1982. He was also a friend of Benjamin's father and after the latter was killed in action, Terry took care of Ben. The two then joined private security in 2001 after the death of Terry's wife.


Prologue: We Have A Situation[]

Although Terry wasn't seen in the Prologue, He did mention that he was above Security Clearance 3 when the U.D.R.C. Outbreak occurred.

Chapter One: Welcome to Underhell[]

Terry is first seen in the control room during Jake's first arrival at the A.R.C.

On the second day (If Jake stays in the Canteen), Terry introduces himself by firing a bullet from his Colt Python upwards into the ceiling to defuse a potential riot when Tyrone and several of the inmates demand gas masks. To calm them down, he assures them that he personally ordered them and will be delivered in good time.

On September 16th, 2013, Terry and some of his men seek refuge in the Security Control Room during the A.R.C. Outbreak. Sometime later, Inmate and former SWAT sergeant, Jake Hawkfield runs into the Control Room, and is introduced to Terry, Ben, Bryan, Junior, Matthew, Hector, and Takeo. The team then make a plan to turn off the power to access the Maintenance Area from the core. Jake and Hector go to the South Wing, while Matthew and Takeo go to the North Wing to turn off the power relays. Ben and Terry mostly stay in the safe rooms to guide Jake and the others. While Jake, Matthew, and Bryan go to the Maintenance Area to reset the M.G.P.S., Terry and the others start packing up and moving to the Shooting Range on Level 1.

Jake, Bryan, and Matthew return to Level 0 after restarting the generator and find a helicopter at the core, and on the way to the Shooting Range, they hear gunshots and find dead soldiers. During the shootout, Junior is wounded and Terry starts treating him.

Later on, Terry and the group move to the Oxygen Room on Level 2. If Jake rescued all the survivors, Terry will give him the key to his office, where Jake will find his Colt Python.

Later, the soldiers attack the safe room resulting in the deaths of many of the survivors, with only Terry, Bryan, Junior, Matthew, Ben, and Eric surviving. Terry, Junior, Ben, and Eric go in the first elevator to Level 5 while Bryan and Matthew stay behind to fend off the soldiers until the next elevator arrives. At that moment, Jake arrives to assist Bryan and Matthew until the second elevator shows up.

Jake, Matthew and Bryan arrive at the Surface Access to meet up with the others and clear the room before the parking lot, but see what appears to be sunlight coming out. Matthew scouts ahead, only to find Ito and his men waiting for them. The soldiers surround Matthew and placed some charges on the support beams prior, Matthew is killed and Eric is caught in the crossfire. Jake, Terry, Ben, Bryan, and Junior make a run for the core access but split into two, forcing Jake to choose a path.

If Jake goes with Ben and Terry, they will go to the Core Command to activate the train in the Maintenance Area and provide a backup escape route to the surface. On the way there, they encounter more armed personnel and are forced to engage them. When they finally reach the Core Command, Ben finds a reading of the M.G.P.S. that shows them the the pressure is off, which will destroy the facility before the group can escape.

Terry's jump.

The group head for the core to go down where a harrier arrives to take them out, but the group evades the jet by going through the Eastern Core Access and it crashes into the door. The team goes down to the train and Ben goes to the control room to start it. Ben however, decides to stay behind and head to the M.G.P.S to delay the destruction of the facility, but Terry jumps out of the train as a result and goes along with Ben. 

It is unknown if the two survived or not.



Terry has been taking care of Ben ever since his father was killed in action.

Jake Hawkfield[]

Notably, if Jake saves all encountered survivors, Terry will be impressed and is grateful enough to offer Jake his Colt Python as a reward.

Personality and Skills[]

Terry is wise, hardened, and will do anything to keep a promise. Terry also appears to have medical skills as shown when he is healing Junior's wounds. He is also mentioned to be a skilled pilot as Matthew mentions how Terry can pilot a helicopter.

Behind the scenes[]



  • "Eric, my name is Terrance Mason, I'm chief of security for the penitential facility on this level, as well as general security on levels 2 and 3. This situation is critical and we have received no orders even though we have a working radio feed."
  • "One, Junior, I am still chief of security...Two, I know this place better than you...Three, I was in the Falklands when you were still wettin' the fuckin' bed. I know this base like the back of my hand and I'm sayin' now, that if we want to get out of here alive, we've gotta work as a team, because we're at the bottom floor of a five story underground complex that isn't even supposed to exist!"
  • "Malcolm! Activate the automated cycle, right now!"
  • "Well done, Jake."
  • "He's alright, no organs were hit. The bullet went in and out, he'll be fine."
  • "Code red. Not again..."
  • "I've been working for this company for 12 years. This isn't the only facility they have. There was another one."
  • "It's a direct order to everyone above security clearance 3 to...to disable everyone below that security clearance."
  • "It was a massacre. A warzone."
  • "I trusted you, Matthew."
  • "Posterus, and Terminus...


  • Often times in the Underhell Trailers, Terrance is seen sitting down. This could imply that given his age, he is not as strong as he used to be, thus making him vulnerable if targeted on the field.
  • Terrance appears to be the one in charge of the A.R.C. Security Staff.
  • Characters that speak to Mason show respect towards him, this is not because of rank but pure respect.
  • Terry was the first character in Chapter One to have his full name revealed.
  • He was an old friend of Ben's father.
  • Matthew mentions that Terry can pilot a helicopter.