s3e8-9 “Future’s End”

First frame is actual Tim Russ and Sarah Silverman, remainder are stunt people John Lendale Bennett and Linda L.C. Madalone.

Bonus fun fact. Sarah Silverman got rather close with Tim Russ during filming. Taken from a Seth Myers interview:

First of all, I kiss him [points to McNeill]… I kissed him at the end of the episode, and he was standing on an apple box because, God forbid, you’re the same height as the girl. Then I made out with him [points to Russ] in real life.