Incarnation:

Tenth Doctor

Companions:

- Rose Tyler
- Captain Jack Harkness
- Mickey Smith
- Donna Noble
- Martha Jones
- Wilfred Mott

Miscellaneous:

- Projected a youthful, energetic, friendly, childlike front
- Fiercely protective, guarded what he held dear
- If someone was duplicitous, they received no mercy or second chances
- Only incarnation to willingly abort one of his regenerations midway through;
- Siphoned the remaining energy into a matching bio-receptacle
- One of his favorite sayings was Allons-y

Regeneration:

- Grazed by the blast from a Dalek gun stick, only healed not fully regenerated
- Radiation poisoning intentionally incurred in order to save the life of Wilfred