who is God talking to here?

[12th Doctor]

Genesis 1:26 Then God said, "Let us make man in our image, in our likeness, and let them rule over the fish of the sea and the birds of the air, over the livestock, over all the earth, and over all the creatures that move along the ground.

Jesus.

[12th Doctor]

John 1

1
    1 2 In the beginning was the Word, and the Word was with God, and the Word was God.
2
    He was in the beginning with God.
3
    3 All things came to be through him, and without him nothing came to be. What came to be
4
    through him was life, and this life was the light of the human race;
5
    4 the light shines in the darkness, and the darkness has not overcome it.