Dick Wolf Creator, Executive Producer Matt Olmstead Creator, Executive Producer Oliver Platt Dr. Daniel Charles Actor S. Epatha Merkerson Sharon Goodwin Actor Nick Gehlfuss Dr. Will Halstead Actor Brian Tee Dr. Ethan Choi Actor Marlyne Barrett Maggie Lockwood Actor Dominic Rains Dr. Crockett Marcel Actor Luke Mitchell Dr. Mitch Ripley Guest Star Sophia Ali Dr. Zola Ahmad Guest Star Marc Grapey Peter Kalmick Guest Star David Parkes Barry Lindheim Guest Star Lorena Diaz Nurse Doris Guest Star Marie Tredway Nurse Trini Guest Star Lynnette Li Nurse Nancy Guest Star Sarah Brooks Paramedic Juliette Guest Star John Earl Jelks Dr. Dennis Washington Guest Star John Fiorentino Sully Guest Star Meredith Garretson Tessa Dunn Guest Star Scott Michael Foster Nick Dunn Guest Star Ray Santiago Vince Gonzalez Guest Star Seth Morris Paul Moore Guest Star Shelley Robertson Pamela Moore Guest Star Nick Mikula Manager Guest Star Jack Seijo Paramedic Jack Guest Star Joseph Anthony Byrd Tyrese "Ty" Guest Star Trey Plutnicki Tim Guest Star Ainsley Soane Becca Guest Star Diane Frolov Executive Producer Andrew Schneider Executive Producer Derek Haas Executive Producer Arthur W. Forney Executive Producer Michael Brandt Executive Producer Peter Jankowski Executive Producer Michael Pressman Executive Producer Anthony Nardolillo Director Meridith Friedman Writer