Dr. Dean Archer has been an integral part of Chicago Med since his introduction to the medical drama in the sixth season.

Archer ( Steven Weber ), who had slipped his resignation letter under her door, first saves her during the attack; his shout once he rushes to her aid distracts Cassidy long enough that Goodwin can turn the knife around on her — pointedly avoiding the major organs,

Steven Weber dishes the details on tonight's midseason premiere emergency surgery, as Sharon Goodwin's life hangs in the balance.

To celebrate the midseason premiere of Chicago Med, Steven Weber chatted with NBC Insider about Archer's resignation—and how destiny had other plans.

Chicago Med tied two cliffhangers together during its season 10 fall finale. Dr. Sharon Goodwin (S Epatha Merkerson) was stabbed and bleeding out, and her only hope of being rescued was Dr. Dean Archer (Steven Weber) who came by her officer to tender his resignation.