In case you’ve forgotten, Blindspot is that show about an amnesiac tattooed woman who works with a team of federal agents (yes, it’s still on the air). This week’s episode had a special guest star who made an explicit connection to a famous Stargate character.

Spoilers for Blindspot and an episode of Stargate: Atlantis.

Bill Nye and Agent Patterson (Ashley Johnson) share some quality time while tracking down a terrorist.

Bill Nye (the Science Guy) appeared as himself in the episode. He reveals that he’s the father of the team’s tech expert, Agent Patterson (first name unknown; it’s a running bit). In case you’re wondering, Patterson has her mother’s last name which is why she’s not Agent Nye.

During a conversation between Patterson and her father they mention that his wife (her mother) is writing a paper with Dr. Rodney McKay. Nye is upset because McKay is his nemesis. If this sounds familiar it’s because we learned that Nye knew McKay back in the Stargate: Atlantis episode “Brain Storm.”

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The obvious conclusion is that this is the same “Bill Nye” from that episode though it could be one from a universe where the Stargate program never happened or Rodney McKay wasn’t recruited into the program.