They're cast in HBO pilot amid a slew of other signings

Casting for pilots is approaching the frenzy stage, with HBO finding siblings for Sarah Michelle Gellar in "The Wonderful Maladys," ABC finding its "V" alien leader in a former "Firefly" regular and Tony Hale getting yet another job.

HBO's comedy "The Wonderful Maladys" is about three siblings who have looked out for one another since their parents died. Gellar, in her first TV project since "Buffy the Vampire Slayer," was cast last fall, and she'll be joined in the pilot by "Studio 60" alum Nate Corddry and "Deadwood" and "Swingtown" star Molly Parker.

Parker will play the eldest of the three siblings who works as a therapist, according to The Hollywood Reporter. Corddry, who's currently playing a recurring part on Showtime's "The United States of Tara," will play the baby, a grad student.

ABC's "V" remake, has found its alien leader in Morena Baccarin. The "Firefly" actress, who also co-starred in TNT's "Heartland" a couple seasons back, will play a character named Anna, who uses her knowledge of human culture to advance her own nefarious plans.

At FOX, meanwhile, the ubiquitous Hale has joined the comedy "Cop House," which is set at a halfway house for troubled police officers. The former "Arrested Development" star has a recurring part on "Chuck" this season and has also guested on "Samantha Who?," "ER" and "The United States of Tara."

In other casting news, British actor Rupert Penry-Jones ("MI-5") has taken the lead in an ABC/Jerry Bruckheimer pilot about a cop who works with a group of amateur detectives; Shannon Woodward ("The Riches") and Robbie Jones ("One Tree Hill") have joined ABC's "Fame"-ish drama "Limelight"; and Eliza Coupe ("Scrubs") has signed on the Alphabet's superhero comedy "No Heroics."