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 bot named Caliban.[3]


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