- "Create your own Toon and join the never-ending battle against the "Cogs", who want to turn Toontown into their latest business venture."
- ―Toontown Rewritten
Toons are the main protagonists of Toontown Rewritten. They are depicted as colorful, joke-loving, and carefree characters, that keep the Cogs from turning Toontown into a dark and depressing business dystopia. When a Toon is created, the player is able to choose the Toon's gender, color, and basic clothing. Once the player creates their Toon, the Toon is sent to Tutorial Terrace.
There is a selection of 11 total species that players may create. They include: dogs, cats, rabbits, ducks, horses, mice, monkeys, bears, pigs, crocodiles, and deer. Crocodiles and deer are Toontown's newest species since 2007 when pigs first arrived in Toontown Online.
- Main page: Gags
Unlike the Cogs, Toons can take a joke. Toons use all sorts of hilarious gags to battle against the Cogs and make them laugh. When progressing through the game by completing missions called ToonTasks, Toons can train up to six gag tracks. Every beginner Toon starts off with a level one gag from the Throw and Squirt tracks. Should a Toon run out of gags, they can visit Goofy's Gag Shop from any playground to purchase more; however, level seven gags cannot be bought.
- Main page: Laff
Invented by Doctor Surlee of Loony Labs, laff is the Toons' health. Toons can complete ToonTasks, max their Cog Disguises, and gain all trophies from certain activities to increase their laff limit. Every beginner Toon starts off with 15 laff points and can go to a maximum limit of 137 laff points. As said by Tutorial Tom, a happy Toon is a healthy Toon.
Outside of constant Cog battles, Toons may participate in certain activities to gain jellybeans or to have loads of fun. Different activities include the Trolley, fishing, racing, golfing, gardening, and parties.
Toons can group up in some activities. For instance, Toons can play Fish Bingo with others to earn extra jellybeans. Another example is the Trolley where up to four Toons at a time can band together to participate in multiplayer minigames.
At Chip 'n Dale's Acorn Acres, Toons can sit on the picnic tables to enjoy food, or play games on the empty tables. These games are also included at the annual Cartoonival event where Toons can participate in fun activities and earn exclusive prizes.
- Main page: NPC
NPCs (non-player characters) are notable residents of Toontown who are characters run by a computer script rather than an actual person playing the game. There are various functions that NPCs carry out in Toontown; the most notable of all NPCs are those who offer ToonTasks.
- The term "Toon" is often used to describe a character in a cartoon (or sometimes animated) movie, series, or any other television-related item.
- Each Toon species has a different "howl" for whenever three O's are said in a row when speaking, or when using the SpeedChat phrase, "Owooo!".
- The monkey's howl sound is the least distinctive, as "ooo" is occasionally used when a monkey says an invalid word using SpeedChat+.
- Pig, monkey, and bear did not originally exist when Toontown Online first released. They were later implemented after winning the votes of three different elections.
- Cow, chicken, and goat were the three unreleased Toon species that lost said elections. They became candidates in Toontown Rewritten's Toontown Species Election but neither of them won.
- Toons can have different statuses under their name. "Name Approved" means that a name was approved, "Under Review" means that a name is still being reviewed, and "Name Rejected" means that a name was rejected from approval.
- If a player requested a name for their Toon that was rejected, they can email firstname.lastname@example.org for an explanation on the matter, or simply continue requesting the name until it gets approved, as some staff members may have different perspectives of what is considered appropriate for the game.