Radio Times teen survey: the Top 10 most trusted stars according to British teenagers:

1. Brian Cox

2. Barack Obama

3. David Tennant

Still arguably the most-loved star of the modern Doctor Who era, the Scottish actor is also a man you can put your faith in.

4. Emma Watson

5. The Queen

6. JK Rowling (writer)

7. Daniel Radcliffe (actor)

8 Ian Hislop (journalist/ TV star)

9. Adele (musician)

10. SacconeJolys (YouTube vloggers)