Out of four confirmedcharacters in the newBig Bang Theoryspinoff, there arent many Sheldon would typically label as friends.

But fans have long since wondered who the original nine were meant to be.

Sheldon specifically mentions Howard and Penny as being among his friends in season 7.

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That leaves his friend count currently at five.

Sheldon hates Kripke, respects Bert even less than Howard, and barely even knows Denise.

Meanwhile,Stuart took Howards place in the main foursome while Wolowitz was in space.

Penny and Sheldon wearing formal dress in The Big Bang Theory

However, this exact storyline underscores why Sheldon might not consider Stuart one of his friends.

And that becomes even more clear when looking at some of the other front-runners for Sheldons nine-point friend list.

At the time, Sheldons only friend with a tie to a major sci-fi franchise was Wil Wheaton.

Mayim Bialik’s Amy kisses Jim Parsons' Sheldon on the couch from The Big Bang Theory

The Big Bang Theory: This sitcom follows a group of socially awkward scientists and their interactions with each other and the people around them. Centered on physicists Sheldon and Leonard, the series humorously explores friendship, romance, and the quirks of life among an eclectic group of academics.

WithSheldons Wil Wheaton feudofficially put to rest,Sheldon specifically names Wheaton as one of his nine friends.

Their friendship isnt perfect over the years, but its there.

Wil Wheaton is also one of the most likely characters to appear inStuart Fails to Save the Universe.

Kaley Cuoco’s Penny stands in Leonard’s apartment in The Big Bang Theory

They cant even bring back a younger version of the character since Newhart played him onYoung Sheldonas well.

Nonetheless, theres every reason to believe Sheldon includes beloved TV scientist Arthur Jeffries among his friends.

Unlike Bill Nye The Restraining Order Guy, Jeffries begrudgingly tolerates Sheldons eccentricities.

Leonard, Stuart, Raj, and Sheldon in The Big Bang Theory

Jeffries just unfortunately saw it differently.

But is she all that bad of a sitcom mom?

To be fair, Sheldon respects a lot of people who he wouldnt necessarily think of as friends.

The ghost of Bob Newhart’s Professor Proton sits in a diner in The Big Bang Theory

But he usually responds to such people with delighted surprise.

Sheldon vocally declared them to be official friends based on the name of the game alone.

However,TheBig Bang Theoryspinoff can still feature Stephen Hawking without his physical appearance.

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He showed her a moment of respect, but he never treated her like a friend.

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