Had you told me at the beginning of David Tennant's third season as the Doctor that his companion for that season, Donna Noble, would become my second favorite companion of all time, I would have laughed in your face. When the season started, Noble grated my nerves. Portrayed by Catherine Tate, who was known primarily for her comedy work, the character was annoying and a bit too pushy for my tastes. As I continued to watch the season, however, I saw how the character of Donna Noble had many more layers to her than the pushy, cranky surface revealed.
Eventually I began to realize that Donna was a deeply sad person who thought that she was the least important person in the universe. Fans of the series know that she became much more than that, but eventually became an even more tragic character in the end. She was the first companion in the new series to make the Doctor see things from a compassionate angle. In short, she gave the man with two hearts, an actual heart.
If any companions are brought back again, I vote that Donna be the first one called back! Were it not for Elisabeth Sladen's brilliant work as Sarah Jane, Donna would be at the top of my list.
Peter Davison, the fifth Doctor, is my favorite, so it should come as no surprise that a few of his companions would make this list. Coming in at number four on this particular list is my favorite Davison companion, Nyssa.
Nyssa's home planet is destroyed when one of the Doctor's greatest enemies, the Master, tampers with mathematicians on the planet of Logopolis (I'm not going into the story as it is way too long to explain). With nowhere to go, she joins up with the Doctor and his other companions, Tegan and Adric.
Being of noble birth, Nyssa came off a bit snobby at first, but she eventually proved to be a very caring and loving individual. Davison's Doctor has always been considered to be one of the most emotional incarnations of the Time Lord, and Nyssa proved to be a catalyst of his emotional output during her time in the TARDIS.
Nyssa was portrayed by Sarah Sutton, and I'm hoping to one day meet her at a convention, as she is second only to Sarah Jane Smith as my favorite classic Who companion.
While the Doctor is almost always a good judge of character, his decision to allow Vislor Turlough to tag along with him, Nyssa, and Tegan almost cost him his life. Turlough was an alien posing as a human schoolboy in order to survive his Earthly exile when he came into contact with the Black Guardian. The Black Guardian hired him to murder the Doctor. In return, the Black Guardian would see to it that Turlough could go back to his home planet of Trion.
The Doctor, usually a good judge of character, agreed to allow Turlough to travel with him, Nyssa, and Tegan on their adventures through space and time. Turlough was hesitant to murder the Doctor at first, and as he spent more time with the Doctor and the other companions, he grew to love them and decided to turn his back on the Black Guardian. Eventually, Turlough would become a strong companion to the Doctor but his sinister attitude kept viewers on edge for most of his time on the TARDIS.
Turlough was portrayed by Mark Strickson with conniving perfection. At one moment I loved the guy and at the next I hated him. It was always fun to see just what sort of trouble Turlough could get into and how the Doctor and the others would get him out.
"Mickey the idiot," as the Doctor often called him, was both the boyfriend of Rose Tyler and an eventual companion of the Doctor and Rose. Early in the revived series, Mickey was portrayed as being something of a buffoon (hence the Doctor's nickname for him) who was very loyal to Rose and loved her very much.
Once Mickey became a full time companion of the Doctor with Rose, he became the typical "jealous boyfriend" who was intimidated by the Doctor's intelligence and his overall "coolness" when compared to Mickey.
Much like Donna Noble, Mickey had a very poor self-image. As the series continued, however, Mickey proved to be one of the Doctor's most loyal and courageous companions. In fact, when Mickey finds his deceased grandmother is still alive in a parallerl timeline, he decides to stay with her and becomes the leader of a guerilla-style rebel group called "The Priests" who take on the Cybermen and literally chase them across time.
Mickey was portrayed by Noel Clarke. He was both the fool and the hero in the series, and he's one of my favorite companions because of this.
What did you think of this list?