Can you keep up with the Joneses?

"Riverdale" Season 3 starts up this Wednesday, October 10 on The CW. But it won't be until December that we meet Jughead’s (Cole Sprouse) mother Gladys Jones and sister Jellybean "JB" Jones.

Gina Gershon ("Cocktail," "Bound," "Rescue Me") " has been cast as Jughead's mom Gladys, with Trinity Rose Likins ("Christmas in the Air") as Jellybean.

Gladys and Jellybean Jones have been running scams in Toledo, Ohio, to make ends meet. They'll show up in Riverdale in the December 12 episode.

Here's the description for Gladys Jones (via Variety):

"Gladys is described as a businesswoman and a biker who runs a salvage yard that doubles as a Southside Serpent compound. A fellow Serpent — but an educated one, with a GED — she is able to command the attention of the others in the gang and acts as a 'Fagin' to a crew of teenaged car parts thieves."

(Fagin is the leader of the group of pickpocket kids in "Oliver Twist.")

Here's more on Jellybean:

"Jellybean is described as being 'wise beyond her years' and is following in her mother’s footsteps as a con artist."

In other new character updates, you may have seen that Riley Keough landed the role of "all-American farm girl" Laurie Lake in Season 3.

And if you want some hints on Wednesday's premiere episode, it will apparently have a new romance and seriously bad news for a main character.

"Riverdale" Season 3 airs Wednesdays at 8 p.m. on The CW.

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