Rover is a special character in the Animal Crossing series. His job varies in each game, but his primary job is to set up the playable character. He is a blue and white cat with red irises and blue pupils in his eyes. Despite his name, which is usually connected with dogs, he is a cat. His name, however, comes from roaming, as he is a traveler.
Rover makes his official debut in Doubutsu no Mori and Animal Crossing, serving to set up the game for the first time. In his first appearance, Rover meets the player on the Train, when he approaches the player asking if he has the correct date and time, before asking if he can sit adjacent to them, promising that he isn't crazy. Regardless of whether the player rejects him or not, He will sit in the row across from the player and drums up conversation by asking questions to determine the gender and appearance, as well as asking where the player is going, and setting up a house for them to stay in by talking with his friend, Tom Nook. Soon after this, the train arrives at the player's town.
The Player can also meet Rover again when traveling to another Town, though he will not ask questions to the player.
In Animal Crossing: City Folk, Rover returns to his previous role from Animal Crossing, by setting up the player for the first time they play. He meets the player on the bus driven by Kapp'n and asks questions to determine the gender and town name of the player. Rover also appears whenever the game is booted up, asking if the time and date is correct and who is going to be playing the game out of four saved players, as well as other options.
Rover also turns on WiiConnect24, as well as other options, such as audio options, by calling him with the phone in the player's attic. He sometimes appears in the Roost, talking about his travels.
In Animal Crossing: New Leaf, Rover yet again sets up the player similarly to previous games. He meets the player on the train before it pulls into town, similar to the original Animal Crossing. Yet, when the player starts the game thereafter, Isabelle greets them, not Rover.
In Animal Crossing: Pocket Camp, Rover hosts the Garden Safari event, when the player can plant seasonal flowers and catch rare butterflies near them. For the captured butterflies, players will get rewards, including Rover-style furniture. Players can also share butterflies with other players.
Rover makes an appearance as a trophy in both versions of the game.
NTSC-U: This kitty is very outgoing, always looking to meet and learn about new people. He'll ask you all sorts of questions the first time you meet. Hopefully you don't respond with random nonsense, since you'll be stuck with your answers. Who wants to live in a town called "AAAAAAA," anyway?
PAL: Always thrilled to meet new people on the move, he'll ask you your name and where you're moving to. Don't just answer with random nonsense, though. After all, you'll be stuck with the answers you give, and who wants to live in a town called "AAAAAAAA"?!
Rover is what you'd call a high-class hobo. He and his cell phone ride the rails from town to town, which explains why he's so well connected. He's happiest when he's sticking his nose in other people's business.
After meeting Rover in City Folk, the player can continue to contact him with his/her phone, located in the attic.
When creating a new character in New Leaf, Rover will say that he "hasn't done this much traveling by train since 2002 or so", a reference to the release date of the original Animal Crossing, which is the only other game outside of Japan in which Rover is met on a train.