Hitchhiking Ghosts

The Hitchhiking Ghosts are a trio of infamous ghosts that are located near the end of the Haunted Mansion in the Disney theme parks. They rarely appear as face characters, only appearing during events such as the Haunted Mansion's 40th Anniversary. They sometimes appeared on the animated television series Disney's House of Mouse. The ghosts also had a minor role in the 2003 film The Haunted Mansion. The Skeleton, however, did not have a speaking part. Their official names are " Phineas " (Traveler), "Ezra" (Skeleton), and " Gus " (Prisoner). On Haunted Mansion Holiday, they make ANOTHER cameo appearance in the graveyard scene of the ride in which they'll sing Christmas melodies with the other dead characters on the ride.

The Haunted Mansion (comic book)
The trio appear in the main story was well as all of the bonus and side stories. They never say anything but attempt to hitch hike, they succeed at one point but scare the cab driver killing him and wind up back at the mansion with the cab driver joining them as a new resident. Gus, however, did get a side story revealing his life before he came to the mansion as a Shepard who only wanted to get some sleep but everywhere he went had bad luck until he was arrested in Port Royal until he died and found his way to the mansion. He soon wants to leave since the other ghosts parties keep him awake and joins Ezra and Phineas.

House of Mouse
The trio appear in numerous House of Mouse episode, most noticeably in the Halloween episode House of Ghosts where they are freed from a crate and sing Grim Grinning Ghosts along with other residents of The Haunted Mansion (Disneyland) such as The Bride, The Executioner and the Hatbox Ghost as well as The Lonesome Ghosts (characters) and The Skeletons from The Skeleton Dance. During the number they scare Pete out of the club.

Mickey's House of Villains
In The House of Mouse made for DVD movie the trio are freed from the crate by Cruella De Vil and join the villains in the song It's Our House Now! as they take over the House of Mouse. Aside from scaring the guests the don't appear to be doing anything bad and are just happy to scare the guests.