Every Classic Doctor Who Companion Ranked From Worst To Best

19. Harry Sullivan

Tom Baker Fourth Doctor Harry Sullivan
BBC

Harry Sullivan almost crossed paths with the Third Doctor but missed him by a couple of weeks. He had been summoned by the Brigadier to aid the man as he lay in a coma, yet he only met the Doctor after his regeneration into the Fourth incarnation. He also met Sarah-Jane Smith, beginning a friendship that would last for decades and also see him entering the TARDIS for the first time.

Harry was present during one of the most important stories in all of Doctor Who, Genesis of the Daleks. He, along with the Doctor and Sarah-Jane, meet Davros in the days before the Daleks are released on the universe. He would also meet the Zygons with the Doctor as well, though he develops a type of gas that destroys them.

In the end, Harry simply chooses to go home without any grand ceremony. Though he was a vital part of the team for a time, he wasn't a massively memorable one. He did stay in touch with Sarah-Jane, who noticed his absences during their scheduled annual catch up, as he was declared missing in action.

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Seán is the host and head writer/presenter for TrekCulture, as well as a writer/presenter on WhoCulture and WhatCulture Horror. He has authored two novels, dozens of short stories, and hundreds of articles for WhatCulture. He holds a Master of Arts in Creative Writing from University College Dublin. As part of his work with TrekCulture, Seán has been invited to participate in collaborations with Roddenberry Entertainment, as well as contributing to several Star Trek community projects. An avid fan of Star Trek, Doctor Who, and the horror genre at large, Seán's expertise has helped develop these channels to the successes they are today. As host of the Ups & Downs series on TrekCulture, Seán has become internationally recognised for his positive yet critically informed approach to reviewing every episode of modern Star Trek, ensuring he is one of the go-to voices in the Trek community. Favourite Quote to describe himself: "I'm serious about what I do, just not always about the way that I do it"