Tim Matheson

Wow someone created time travel, cloning, or some other crap then apperantly used it solely to get the same actor into 2 different eras, cause that dude in the lead role is Tim Matheson.

I know it seems strange that someone would invent something so difficult and spectacular and then use it solely to make sure a B list actor can work in 2 different eras, but there really is no other possible explanation.