Jamie Chung and Maya Rudolph will join Disney’s Big Hero 6

The top secret cast leaked out via multiple outlets and has yet to be fully confirmed. But, we now can reveal that Maya Rudolph, T.J. Miller, and Jamie Chung have joined the cast of BIG HERO 6.
Disney has only released some concept art and a brief clip of footage that doesn't showcase any characters. We did get a plot synopsis that does keep in line with what is known about the obscure comic title.

    BIG HERO 6 is a comedic action-adventure movie about brilliant robotics prodigy Hiro Hamada, who finds himself in the grips of a criminal plot that threatens to destroy the fast-paced, high-tech city of San Fransokyo. With the help of his closest companion — a robot named Baymax — Hiro joins forces with a reluctant team of first-time crime fighters on a mission to save their city.