Lachlan Weaver is a fictional business owner and a minor character featured in the Terminator multimedia franchise. Played by actor Derek Riddell, he made a single appearance in "The Tower is Tall But the Fall is Short" episode of Terminator: The Sarah Connor Chronicles.
Lachlan Weaver was the husband of Catherine Weaver and the father of Savannah Weaver. He was the founder of Zeira Corp, which was based out of Los Angeles, California. In the late 2000s, Lachlan Weaver perished in a helicopter incident despite the fact that he was known to be an extremely experienced pilot. In truth, he was murdered by a T-1001 Terminator who also killed his wife. The Terminator used its polyalloy metamorphic abilities to assume the form of Catherine Weaver and took control of Zeira Corp.