The Lodger - S5-E11
Trivia: The scenes involving the football/soccer game were shot in the same park as the scenes from "Forest of the Dead" involving Donna meeting the virtual Miss Evangelista. The dead giveaway? The gazebo where Donna and Miss Evangelista talked is visible in the background of the first shot of the Doctor, Craig and Sophie arriving.
Chosen answer: No, no information is avalible for the identity of the entity.
Repo_Man