They are all 15 Doctors expect they're the same person!
The 1st Doctor is stubborn, abrasive, and somewhat grumpy personality, often depicted as a distrustful old man.
The 2nd Doctor is playful, whimsical character, often described as a "cosmic hobo.
The 3rd Doctor is confident, authoritative, and action-oriented.
The 4th Doctor is eccentric, whimsical, and often unpredictable.
The 5th Doctor is kind, vulnerable, and often indecisive.
The 6th Doctor is flamboyant, arrogant, and often pompous.
The 7th Doctor is a blend of an eccentric buffoon and a shrewd manipulator.
The 8th Doctor is effortlessly charming and open about stuff.
The 9th Doctor is a deeply scarred and emotionally intense incarnation of the doctor.
The 10th Doctor is characterized by his affable, easygoing, and charismatic.
The 11th Doctor is energetic, lively, and eccentric, with a playful, almost childlike outlook on life.
The 12th Doctor is spiky, brusque, contemplative, and pragmatic
The 13th Doctor is bright, excitable, and a fast-talker.
The 14th Doctor has the same face as the 10th Doctor, the same personality as 10 but more worn out.
The 15th Doctor is playful, fun-loving, and emotionally expressive nature