Sophia Bush Ends Her 'Chicago P.D.' Time on a Sour Note Lindsay was mentioned a few times early on in Season 5, but since then there has been nothing.

It was just so exhausting. Yeah, it was bad." Although Bush did not specifically mention the show by name, she mentioned leaving the show in April 2017, which is when she left Chicago PD.

Sophia Bush's Erin Lindsay left Chicago P.D. after four seasons, and Bush was open about her decision to depart the hit show.

The “One Tree Hill” alum portrayed Erin Lindsay in “Chicago P.D.” from 2014 to 2017 — leaving after Season 4 due to its alleged toxic work environment.

Sophia Bush Ends Her 'Chicago P.D.' Time on a Sour Note Lindsay was mentioned a few times early on in Season 5, but since then there has been nothing.