Bryn & Nessa, Tom Jones, Robin Gibb, islands in the stream Official video Comic Relief 

It's Ruth Jones,who plays Nessa Jenkins in the BBC comedy series Gavin and Stacey

It's Ruth Jones, she co-wrote Gavin and Stacey with James Corden. The line I like is when Robin Gibb does to get change from the kiosk in Barry Island. She says to Robin " I normally sees Barry down Barry so it makes a change to see you " i've never laughed so much in my life