Animaniacs is an American animated comedy musical television series created by Tom Ruegger for Fox's Fox Kids block in 1993. The Warner siblings live in the Warner Bros. Water Tower on the Warner Bros. studio lot. The Warner siblings, Yakko, Wakko, and Dot, are three 1930s cartoon stars of an unknown species that were locked away in the WB Tower until the 1990s, when they escaped. After their escape, they often interacted with other 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 anthropomorphic laboratory mice who continuously plot and attempt to take over the world.