Fearless journalist, professional meddler, and the Doctor’s best friend (just don’t tell the others).
Character Overview
Sarah Jane Smith first appeared in The Time Warrior (1973), when she snuck into a UNIT facility under a false name to investigate secret goings-on. She was meant to be a one-off nosey reporter, but she proved so good at snooping that she wound up joining the Doctor in the TARDIS. This was the ‘70s, so apparently stowing away was an acceptable job application.
From there, Sarah Jane became one of the most iconic companions in Doctor Who history. She was brave without being reckless, clever without being smug, and sarcastic enough to keep the Doctor’s ego in check. Traveling with both the Third and Fourth Doctors, she faced everything from Daleks and Cybermen to Sontarans and mummies, and usually had the good sense to scream only when it was actually appropriate. (A rare gift in the ‘70s.)
Her dynamic with the Fourth Doctor especially became legendary — a mixture of banter, camaraderie, and mutual exasperation. She was a feminist before the show quite knew what to do with one, and never let the Doctor (or anyone else) talk down to her. She demanded answers, stood up to alien warlords, and once famously called the Doctor a “galactic yo-yo,” which frankly still feels accurate.
Her original exit came in The Hand of Fear, when the Doctor got summoned back to Gallifrey and, in peak Time Lord fashion, just… dumped her in what he thought was Croydon but was actually Aberdeen. (Some friend.) But Sarah Jane’s story didn’t stop there. She returned in The Five Doctors (1983), then decades later in School Reunion (2006), proving she hadn’t lost her edge — or her ability to emotionally devastate fans. This led to her own spinoff, The Sarah Jane Adventures, where she protected Earth with a new team of kids, an alien supercomputer, and K-9 (because even legends need a robot dog).
Sarah Jane’s legacy in Doctor Who is unmatched. She was more than a companion — she was a friend, an equal, and a reminder that you don’t need a sonic screwdriver to be brilliant, just good instincts, a sharp wit, and a sturdy pair of boots.

