Columbo
Reappeared means that something appeared again.
Edgar Allan Poe's modern detective story was "The Murders in the Rue Morgue," published in 1841. It is considered one of the first detective stories and features the character C. Auguste Dupin as the amateur detective solving a seemingly unsolvable case.
Dick Tracy is a fictional detective character created by Chester Gould in 1931. He is known for his sharp detective skills, distinctive yellow fedora, and battle against organized crime in the city of Chicago. Tracy has appeared in comic strips, radio shows, TV series, and movies.
The opposite state of having "disappeared" would be "appeared." The opposite activity (which undid a disappearance) would be "reappeared."
The cast of The Detective - 2011 includes: Adam Reyna as Detective DeLaCruz
The character "Sam Spade" was a private detective who featured in the 1941 film "The Maltese Falcon" where he was played by Humphrey Bogart. He also appeared in three lesser detective thrillers by the author, Dashiell Hammett.
Agatha Christie's first novel The Mysterious Affair at Styles was published in 1920 and introduced the long-running character detective Hercule Poirot, who appeared in 33 of Christie's novels and 54 short stories.
The cast of The Affected Detective - 1922 includes: Cecil Mannering as Detective
The cast of Detective - 2011 includes: Nina Horakova as Victim Dusan Sitek as Detective
The cast of The Detective Without a Hat - 2010 includes: Parker Stanfield as The Detective
The cast of Detective Dot - 1913 includes: Frances Ne Moyer as Detective Dot Tyron
The cast of The Soul Detective - 2009 includes: Leandro Lefa as The Detective David Lynch as himself