Jughead Jones' grandfather is headed back to Riverdale.

Decider reports Once Upon a Time star Timothy Webber has joined The CW series as Forsythe Pendleton Jones I. Forsythe passed his name down to his son F.P. Jones, who in turn gave it to his son Jughead. The character has been absent from the series so far, with F.P. mentioning him occasionally. He will make his official debut in Season 4 episode 9, the mid-season finale.

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According to the character's official description,

Forsythe Pendleton Jones I... is your basic grizzled hermit who lives alone in the woods. Jughead’s grandfather, Forsythe is the family patriarch -- but he’s ashamed of himself, riddled with guilt over his lack of achievement and his descent into the bottle. When Jughead shows up on his doorstep, Forsythe invites him in to discuss his long-ago involvement with the Baxter Brothers franchise.

Last week, F.P. revealed Forsythe once briefly attended Stonewall Prep, an elite prep school that Jughead is considering. Per the character's description, it looks like he will have some advice to offer Jughead about the school.

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In addition to his role as the Sorcerer's Apprentice on Once Upon a Time, Webber has appeared in A Series of Unfortunate Events, The Exorcist and Loudermilk. His past credits also include Rise of the Planet of the ApesWar for the Planet of the Apes, The X-Files and Supernatural.

Airing Wednesdays at 8 p.m. ET/PT on The CW, Riverdale stars KJ Apa, Lili Reinhart, Camila Mendes, Cole Sprouse, Madelaine Petsch, Casey Cott, Vanessa Morgan, Mark Consuelos, Skeet Ulrich, Marisol Nichols and Madchen Amick.

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