Sienna Miller's on-off boyfriend, Balthazar Getty, is heading to jail as part of a storyline in hit TV drama Brothers & Sisters. The actor, who plays Tommy Walker on the show, has long been the subject of firing rumors, following his affair with Miller in 2008.

Insiders claimed the romance had caused a rift between Getty and his co-stars, but the actor recently insisted there were no problems on the set, claims backed up by his TV sister Rachel Griffiths.

Earlier this month, Getty told TV Guide, "There were all these stories that the set was divided... but we're family. You have ups and downs, but you stay together and love each other without judgment."

And he faced up to reports his job was on the line, by stating, "I'd like to stay on the show and finish out my contract at the very least."

But now co-star Matthew Rhys, who introduced the actor to Miller, admits Getty's days on the drama are numbered. He tells TV Guide, "A number of episodes have been offered to Balt next season. It's going to be a choice for him whether he wants that or not."

But his TV wife, Sarah Jane Morris, isn't holding out much hope - and has reportedly started looking for new work. She tells the publication the whole situation has left her feeling "icky."

(This news article provided by World Entertainment News Network)