Who plays hal heckler in the movie the lovely bones?

In the movie "The Lovely Bones," the character Hal Heckler is played by actor Mark Wahlberg. The film, directed by Peter Jackson and based on the novel by Alice Sebold, follows the story of a young girl who watches over her family from the afterlife after being murdered. Wahlberg's character is the father of the protagonist, Susie Salmon.