Twin Peaks

The Giant appears to FBI agent Dale Cooper in visions, first right after Cooper has been shot in his hotel room. The Giant provides Cooper with clues about the murder of Laura Palmer, alerts Cooper that Laura's killer is in the process of murdering Maddy Ferguson and later confirms the identity of the murderer during a vision in the Roadhouse. Later on, he also warns Cooper that his love-interest Annie Blackburn should not enter the Miss Twin Peaks pageant (her winning the contest is a key element leading to Cooper's entering the Black Lodge and subsequently his downfall).

The Giant apparently inhabits an elderly Room Service Waiter of the Great Northern Hotel (played by Hank Worden).^[2] Also, the Giant wears a similar outfit to the Waiter (who in himself is a ghostly semi-conscious entity who almost never appears in a crowd or within the guests rooms of the Great Northern). In the final episode, when Cooper has entered the Black Lodge, both the Waiter and the Giant appear and the latter confirms their identity, stating: "One and the same".

He also appears alongside of the Man from Another Place in the Lodge's waiting room. Some have opined that the waiting room actually is a neutral location between the Black and the White Lodge. In his first appearance, the Giant refused Cooper's question of his whereabouts. In a series of trading cards issued in 1991, The Giant's trading card lists his "Education" as the White Lodge and his "Weaknesses" as "I can only be seen by those who believe."

2017 revival

Struycken reappears in the 2017 revival series, but as a character called The Fireman, leaving it ambiguous if he is the same entity as the Giant. Prior to being identified, the character was referred to as ??????? in the ending credits. As in the original series, this character provides cryptic clues to Cooper and appears to have benevolent intentions. Unlike the Giant, however, he does not appear in the natural realm, instead bringing individuals into his own realm, which is depicted as being predominantly without color.

The Fireman's earliest known activity was in 1945 when he created an orb bearing the face of Laura Palmer and had it sent to Earth in response to the Experiment's creation of an orb bearing the face of Killer BOB. Sometime before 2014, he brought Freddie Sykes into his realm, where he told Freddie to buy a gardening glove that would enhance his strength and travel to Twin Peaks. When Sheriff Frank Truman and Deputies Bobby Briggs, Tommy "Hawk" Hill, and Andy Brennan investigate a clue left behind by Major Garland Briggs in 2014, Andy is transported into the Fireman's realm and provided information on important events. The Fireman is last seen after Dale Cooper's doppelgänger travels to his realm, which prompts him to send the doppelgänger to the Twin Peaks Sheriff's Department.