Tim Bradley

Tim Bradley worked as a Hasbro designer on the "Beast Machines" series, produsing key concept art and designing the beast modes for Cheetor, Rattrap, Optimus Primal, Blackarachnia, and Nightwing, as well as characters just featured in the toy line, such as Snarl, Buzzsaw, and Longhorn. For the "Cybertron" line, Tim generated concept sketches for various beast figures, as well as the planet keys for each segment.

From Teletraan I: The Transformers Wiki, a Wikia wiki.