what are yakko wakko and dot supposed to be
The Warner kids, Yakko, Wakko, and Dot, are three 1930s cartoon stars of an unknown species that were locked away in the Warner Bros. Water Tower until the 1990s, when they escaped.
Animaniacs
The Warner kids, Yakko, Wakko, and Dot, are three 1930s cartoon stars of an unknown species (one Tom Ruegger named "Cartoonus characterus") that were locked away in the Warner Bros. Water Tower until the 1990s, when they escaped. 
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Animaniacs [SEP] Characters
"Animaniacs" had a large cast of characters, separated into individual segments, with each pair or set of characters acting in its own plot. The Warner kids, Yakko, Wakko, and Dot, are three 1930s cartoon stars of an unknown species (one Tom Ruegger named "Cartoonus characterus") that were locked away in the Warner Bros. Water Tower until the 1990s, when they escaped. After their escape, they often interacted with Warner Bros. studio workers, including Ralph the Security Guard; Dr. Otto Scratchansniff, the studio psychiatrist, and his assistant Hello Nurse. Pinky and the Brain are two genetically altered laboratory mice who continuously plot and attempt to take over the world.