portia de rossi scandal season 4 ellen degeneres 'Scandal' Season 4 casts Portia de Rossi; who will she play?A fun bit of “Scandal” Season 4 casting news broke today on Twitter … via Ellen DeGeneres.

The comedian tweets, “So annoying when people brag on twitter & that’s why I’m not
tweeting that Portia just signed on to do a top secret arc on ‘Scandal’.

ABC confirms to Zap2it that Portia de Rossi is coming to “Scandal” this fall, but the network isn’t releasing any storyline details yet. Let the speculating begin!

Maybe she’s a Washington, D.C., bigwig who is going to cause trouble for President Grant. Maybe she’s a woman in trouble who hires Pope & Associates to help her out. Or maybe she’s Olivia’s long-lost half-sister! Whatever it is, we’re sure it’ll be juicy.

“Scandal” returns Thursday, Sept. 25 at 9 p.m. ET/PT on ABC.