Dan Hartfield

Dan Hartfield is the ex-husband of Lisa Stillman.

Season 1
Dan brings Gallant Prince to Heartland for Amy to work with. He's dismissive of Jack's 600 acres labelling them "small potatoes." When he calls Amy for an update on Prince he suggests that the horse be destroyed because he isn't improving. Dan see's Lisa and Jack at the stable he finds joy in telling Jack that he and Lisa are married. When she and Dan go to check on Prince to see his improvements he isn't happy to see that Ryan is working with the horse. He soon learns that Sam was the real cause of the fire and offers Ryan the job at the stud farm. (Out of the Darkness)