Chicago PD fans are curious to know why Sophia Bush, who portrayed Erin Lindsay in the show, left after the Season 4 finale.

Detective Erin Lindsay sure gets around! In addition to her weekly appearances on Chicago P.D. (Wednesdays, 10/9c, NBC), the character (played by Sophia Bush) popped up on last week's episode of ...

Sophia Bush has been fairly tight-lipped about her reasons for leaving “Chicago P.D.” at the end of Season 4. But on Monday, the actress who had played Det. Erin Lindsay on the Dick Wolf NBC ...

Linstead is taking a big, big step in Chicago ... “So Halstead and Lindsay, this season, might be getting a little domesticated,” Jesse Lee Soffer, who plays detective Halstead, tells EW ...

The Intelligence Unit searches for an internet killer who burns suspected pedophiles alive in “Chicago PD” Season 4, episode 22. Pictured: Sophia Bush as Detective Erin Lindsay. Matt ...

Things may be hotting up on the show between Jesse Lee Soffer's character Detective Jay Halstead ... Rounding off the main cast of Chicago PD is Amy Morton, who plays Desk Sergeant Trudy Platt.

Chicago PD: Drama. 10 p.m. Wednesday ... But Chicago cops have played a role in that series, first through the character of Detective Antonio Dawson (Jon Seda), brother of EMT Gabriella Dawson ...