Malcolm Betruger

Dr. Malcolm Betruger is a character from Doom 3, voiced by Philip L. Clarke. He is the head scientist of the UAC on Mars.

Dr. Malcolm Betruger (whose last name is derived from the German word 'Betrüger' meaning 'deceiver' or 'fraud') is a fictional character voiced by Philip L. Clarke. He is the main antagonist in both Doom 3 and Doom 3: Resurrection of Evil expansion pack by id Software. In Doom 3, Betruger is the director of all research at the Union Aerospace Corporation research facility on Mars, while in Resurrection of Evil, he is part of a flying dragon-like demon named the Maledict. He is an elderly, overworked doctor, whose right eye is grayed over with blindness.

In Doom 3, it is stated in an audio log that Betruger inexplicably entered a teleporter, transporting him to Hell. He had done this some time before the events depicted in the game took place. The doctor who recorded the audio log claimed he had no idea why Betruger entered the teleporter, he thought Betruger had gone crazy. He may have been lured into the teleporter by one of the whispering voices heard throughout the game. Or he may have gone in by his own will, with a Faustian pact in mind, where he may have agreed to provide a portal that the demons could use to invade the facility, which would supposedly award him great supernatural power, including a degree of omnipresence and the ability to command armies of demons. The doctor also stated that when Betruger returned from the teleporter he had changed. He still looked the same, but he behaved differently. This suggests that Betruger may have become possessed. But it is never clearly stated what happened to Betruger. Shortly after the Marine arrives at the facility with Counselor Elliot Swann and Jack Campbell, Betruger, crazed by his teleportation visit to Hell, deliberately opens the UAC's main teleporter, removing safety constraints and allowing an invasion by demonic forces. Following the disaster on Mars, he plans to lure the Marines of the Earth Fleet to Mars and use their spacecraft to send his demons to Earth. By doing so, he may conquer and rule the planet. However, he is foiled in his attempts by the player's character.

As the Maledict
When Betruger merged with the Maledict, he was planning his revenge against the humans for frustating his plans. He has waited 2 years to draw the UAC back to Mars, once again. When the player touches the Artifact, Betruger knows they are there.

''Hell reaches out for what is ours. We have been unbound...''

''They have arrived, my children.... as I promised.''

Hunt them down.

Our new reign begins...now.

-Betruger introducing the new invasion at the beginning of Resurrection of Evil.

Welcome to your death...

-Betruger taunting the Marine.

Worthless human, this fight has only just begun!

-Betruger after the defeat of the Helltime Hunter.

Return what is ours...

-Betruger before he was killed by the Marine. He is referring to the Artifact.

Trivia
Betruger's name comes from the German word "Betrüger" which means "deceiver" or "traitor".

Dr. Reinhard from Evil Dead: Regeneration has several similarities to Betruger. In addition to looking similar (with a solid white eye), both were said to have been good before their pacts with the undead. They also have German names.

In the E3 2002 demonstration of Doom 3, Betruger wears glasses or goggles, which were removed for the final release of Doom 3. In the demo video, he is shown pushing past a couple security guards to initiate a dangerous test sequence.