Dr. Rufus Weller is voiced by David Tennant and is a character who brings "both humor and seriousness".[1] Dr. Weller has the common nickname of "Doc."

His appearance was first introduced on July 27th, 2018, via Rooster Teeth's Twitter.[2] With Weller is a robot named Caliban.[3]


Tennant described Weller as the genius who enabled the technology that sets the story in motion.[4]

It is also made clear in the trailers that he is not fond of the fact that his program was militarized.

He is also something of an eccentric intellectual, often purposely ignoring the seriousness and urgency of a situation that would overwhelm his contemporaries, maintaining an otherwise unflappable and sometimes unsettling calmness in the face of emergencies.