like robots. The characters name is taken from the  1920s science fiction play "R.U.R. (Rossums Universal Robots)" by  Karel Capek (I) (qv), which introduced the word "robot" into the  English language. In both episodes, Dr. Carl Rossum is voiced by  William Sanderson (qv), who played the Replicant creator J.F.  Sebastian in _Blade Runner (1982)_ (qv). As a reference to this, in  the episode "Heart of Steel," Randa Dwaynes car has "RUR" on its  license plate.