Deadline:

Crazy Rich Asians star and stand-up comedian Ken Jeong and Dope actress Kiersey Clemons are joining the Mystery Inc. gang in Warner Bros.’ animated Scooby-Doo movie Scoob from director Tony Cervone.

Besides being good additions, the wild part about their characters is that these continue to mine odd sections of the Hanna Barbera universe, with Jeong as Dynamutt and Clemons as Dee Dee Sykes, a tertiary character from Captain Caveman.