Mickey Smith

Mickey is a fairly nondescript young man when his girlfriend Rose encounters the Doctor. Swept along (and nearly killed by the Autons), he initially reacts with fear and disbelief to the dangers represented by the Doctor. After Rose leaves with the Doctor, disappearing for a year, as far as her mother and the police are concerned, Mickey is suspected of being responsible for her disappearance and this nearly destroys his life. After a few more adventures with the Doctor on Earth, he’s invited aboard the TARDIS, but turns down the Doctor, still fearful, but eventually he invites himself aboard, much to Sarah Jane’s delight, and travels with the Doctor and Rose for a few stories before opting to stay in a parallel universe in which they find themselves. He of course ends up back home before too long, though.