1. A romantic and timeless appearance

-His long hair, Victorian-inspired clothing and elegant manner give him the appearance of a wandering adventurer from another age.
-His expressive face and theatrical gestures make him seem more like a romantic literary hero than a conventional science-fiction protagonist.
-His appearance reflects an idealistic, almost old-fashioned sensibility in a universe of constant change.

2. An emotionally open heart

-Expresses affection, grief, excitement and wonder more openly than many previous incarnations.
-Forms intense personal connections and is visibly changed by his encounters with others.
-In the 1996 television movie, his relationship with Grace Holloway highlights his capacity for intimacy and emotional vulnerability.

3. An adventurous spirit

-Approaches the universe as a place filled with endless possibilities and discoveries.
-Is drawn to exploration not simply out of duty, but because he genuinely loves experiencing the wonders of existence.
-His expanded adventures in audio dramas and novels portray him travelling widely through time and space, developing relationships and confronting both intimate and cosmic dangers.

4. A belief in hope and redemption

-Often sees the potential for goodness even in people who have made terrible mistakes.
-Believes that compassion and understanding can change the course of someone's life.
-His many adventures with companions such as Charley Pollard explore loyalty, sacrifice and the consequences of choosing to save others.

5. An idealist tested by tragedy

-His optimism and love for life are repeatedly challenged by loss and the suffering he witnesses.
-His compassion can become a source of anguish when he cannot save everyone.
-In The Night of the Doctor (2013), he ultimately accepts regeneration into the War Doctor because he believes the universe needs a warrior, sacrificing the identity he cherishes to help others.