Editing Walk-in (concept) (section)

==In popular culture==
The 1941 film ''[[Here Comes Mr. Jordan]]'' and the 1978 remake ''[[Heaven Can Wait (1978 film)|Heaven Can Wait]]'' portrays one soul replacing a recently deceased man's soul and reviving to inhabit his body. 

The ''[[Hawkgirl]]'' comics, the ''[[K-PAX]]'' series of books and film, and the ''[[The Twilight Zone (1959 TV series)|Twilight Zone]]'' episode "[[The Last Rites of Jeff Myrtlebank]]" have all featured situations similar or identical to walk-in experiences, although the term "walk-in" is not used.

In the ''[[Death of Superman]]'' story cycle, a handful of new superheroes appeared, among them [[John Henry Irons]], who called himself the "Man of Steel". Irons never claimed to be the real Superman, but [[Lois Lane]] speculated that if Superman were really dead, his soul might have moved into Irons' body, mentioning walk-ins explicitly.<ref>[[Roger Stern|Stern, Roger]]. [https://books.google.com/books?id=2miDHzlltK4C&q=%22have+you+ever+heard+of+a+walk-in+spirit%22 ''The Death and Life of Superman''] (novelization of the ''[[Death of Superman]]'' storyline). Random House Publishing Group, 1994. p. 365. "I knew all along that Superman would return, and now he has. Not necessarily in the form people might have expected, but it was him. Listen, have you ever heard of a walk-in spirit? When a body has been  abandoned by one spirit but is not yet uninhabitable, then another spirit can move in. Anyway, whatever he is, the cards tell me for sure that the man who saved me today is definitely the Man of Steel. For sure."</ref>

''[[The X-Files]]'' episode "[[Red Museum]]" discusses walk-ins, described by Mulder as enlightened spirits who have taken possession of the bodies of people who have lost hope and who want to leave their life. The concept is returned to in the episodes "[[Sein Und Zeit (The X-Files)|Sein Und Zeit]]" and "[[Closure (The X-Files)|Closure]]". 

In the TV series ''[[Ghost Whisperer]]'', the season 4 episode "[[Ghost_Whisperer_(season_4)#Episodes|Threshold]]" used the term "step-in" when the soul of one of the series' main characters, who had died in the previous episode, enters the body of a man who dies in an unrelated accident.

[[Stephen King]] speaks of "walk-ins" several times in books 6 and 7 of ''[[The Dark Tower (series)|The Dark Tower]]'' novels, but King's walk-ins are usually physical travellers, or - when they possess another's body - are more guests, sharing the body with the original mind as strangers. John Callum mentions them in ''[[The Dark Tower VI: Song of Susannah]]''. The term is also used in the CODA section of this book. In ''[[The Talisman (King and Straub novel)|The Talisman]]'', cowritten by King, the concept of "Twinners" is presented in a similar manner: Twinners are separate but fundamentally similar individuals that live parallel existences on Earth and in the world of the Territories. If either or both of the pair gain awareness of their Twinner, they can learn to occupy the other's body in their respective worlds in style of a walk-in.

The main character Myne in ''[[Ascendance of a Bookworm]]'' is a walk-in. Originally a [[light novel]], the story was released in [[anime]] format October 2019.