Cogs are the main antagonists in Toontown. They are evil business robots with the objective to convert Toontown into a dark corporate land. Their corporate ladders comprise of eight Cogs each, with a total of 40 different Cogs (44 if you count the existing bosses, 45 if you also count the CIO) with levels varying from level 1 to 12. Cogs use a set of attacks to sadden the wacky, cheerful Toons into losing all their laff points; stronger Cogs tend to have higher health and stronger attacks.
Tutorial Tom said that the Cogs cannot take a joke. To affect the Cogs, Toons use jokes called gags to battle them. Cogs must be defeated by using gags.
The Cogs made their first canonical appearance as antagonists at the Toon Council Presidential Elections, transforming the event into Doomsday when unleashing an ambush marketing invasion. Before they were antagonists, their first appearance was, in particular, Trolley games where they would provide friendly competition. After the Cogs tried to take over the Toon Council Presidential Elections, they now roam the streets of Toontown, taking over Toon Buildings by dropping Cog Buildings on top of them.
Cogs have a special "Waiter" suit variant. Instead of the standard color scheme for that type of cog, waiter cog suits are all white. This suit type can be seen during the CEO battle, and during rare invasions.