Kit, having recently arrived to live in the United States together with his faithful friend Guran of the Bandar tribe, had run away from his aunt and uncle, Sid and Bessie, due to strong homesickness.
However, in the serial, she is the niece of Professor Davidson, and she is not romantically involved with the Phantom, but is intending to marry a man named Byron Anderson in the beginning of the story.
In 1996, Kristy Swanson portrayed her in Paramount's big budget film The Phantom, featuring Billy Zane in the title role.
Diana is here sent out by her uncle Dave (in the film, a wealthy newspaper publisher) to Bangalla to help with the search for a fabled weapon of doom, the Skulls of Touganda.
When she is trapped by the henchmen of bad guy Xander Drax, she is saved by the Phantom, who unbeknownst to her is really her college boyfriend, Kit Walker.
[2] In the 2009 miniseries, Diana Palmer Walker is seen in the opening sequence fleeing with young Kit from Singh Brotherhood assassins in a desperate car chase through New York.