One Chicago Center
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One Chicago crossovers: Guest stars for the week of March 20

By Brittany Frederick

CHICAGO P.D. -- "Ghosts" Episode 518 -- Pictured: (l-r) Tracy Spiridakos as Hailey Upton, Titus Welliver as Ronald Booth -- (Photo by: Matt Dinerstein/NBC)
CHICAGO P.D. -- "Ghosts" Episode 518 -- Pictured: (l-r) Tracy Spiridakos as Hailey Upton, Titus Welliver as Ronald Booth -- (Photo by: Matt Dinerstein/NBC) /
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Who’s guest starring and crossing over in One Chicago this week? Here are the One Chicago crossovers and guest stars for the week of March 20-22.

One constant for the One Chicago franchise is that characters move from one show to another all the time. At least once or twice a week, characters from Chicago Fire, Chicago PD, Chicago Med and Chicago Justice are making guest appearances on each other’s shows and if you’re a fan of a particular character, you don’t want to miss them.

We here at One Chicago Center are making it easy for you to find your favorites by making a weekly list of which characters are crossing over each week and on what shows they’ll appear.

We also will include recurring characters who are returning, and any particularly notable guest stars that are worth watching.

Please note that all information is taken from NBC’s official descriptions of episodes, so things may change and characters might get cut in the final edit.

Here’s who’s visiting our One Chicago shows this week:

Chicago Med (March 20)

  • Michel Gill returns as Dr. Sarah Reese’s father

Chicago PD (March 21)

Chicago Fire (March 22)

  • Dr. Will Halstead (Nick Gehlfuss) crosses over from Chicago Med
  • Dr. Ethan Choi (Brian Tee) crosses over from Chicago Med
  • April Sexton (Yaya DaCosta) visits from Chicago Med
  • Maggie Lockwood (Marlyne Barrett) visits from Chicago Med
  • Antonio Dawson (Jon Seda) comes over from Chicago PD
  • Kim Burgess (Marina Squerciati) crosses over from Chicago PD
  • Gary Cole returns as Chief Grissom

Next: Chicago Fire's Jesse Spencer gives his opinion on Dawsey

This is a great week for guest stars in One Chicago! Titus Welliver will be fantastic on Chicago PD, and Chicago Fire is packed full of crossover appearances in its two-hour block, including four folks from Chicago Med and more Antonio for Brettonio fans. Make sure you don’t miss any of these guests.

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