The old-school animation of Over the Garden Wall (no computer-generated slickness here) premieres at 6 p.m. Monday and runs at that same hour for five consecutive nights and 10 episodes.

In the fifth episode of Over the Garden Wall, "Mad Love," Wirt, Greg, and Beatrice end up at the isolated mansion of a wealthy and lonely man named Quincy Endicott (John Cleese).

Rebecca Sugar (Steven Universe), Ian Jones-Quartey (OK K.O.!), Patrick McHale (Over the Garden Wall), and Pendleton Ward (Adventure Time) are all teaming up—well, sort of—for The Elephant ...