Learn English – Pinpointing British accents

After having watched British TV and movies for a while, I came across several accents I liked. But I'm not completely sure what they are, so I need your help 🙂

1. David Tennant as The 10th Doctor (skip to 0:39 if it doesn't for you).
   When he speaks more calmly, he sounds almost RP to me, but when he's more agitated, I hear something else.

2. David Tennant in real life — (skip to 1:24) — sounds more Scottish (?) to me.

3. Charlie McDonnell. He sounds fairly "neutral" to me, but I doubt it's RP.

UPDATE: Dancrumb and ShreevatsaR provided information that apparently The Tenth Doctor speaks Estuary English. But to me it's a very confusing revelation.

I can't find similarities between his accent and that of other notable Estuary speakers, such as David Beckham, Nasser Hussain or Jamie Oliver.

The Tenth Doctor doesn't have:

• glottal stops (he pronounces daughter as door-tsah, not as door.ah — sorry for the lame transcription)
• intrusive R (either that or I just didn't notice)
• L-vocalization (same comment as above)
• A deeper "i" (that sounds almost like "oi" with Estuary speakers)

Overall, The Tenth Doctor sounds much more RP than the other Estuary speakers, and they, respectively, sound much more Cockney. I can't find a single Estuary speaker on the web that would sound like The Tenth Doctor.