Why Crockett From Chicago Med Looks So Familiar

In the years leading up to his "Chicago Med" role, Rains appeared in numerous independent features: the family fantasy film "A-X-L" in 2018, 2019's "Marjoun and the Flying Headscarf," the 2019 romance "Draupadi Unleashed," and the Amazon Prime original "Takes From the Loop," where he logged three appearances as Lucas.

Rains has put in two appearances in the Marvel Cinematic Universe. He starred in 2014's "Captain America: The Winter Soldier" as a CIA training instructor. He then appeared on "Marvel's Agents of S.H.I.E.L.D." for an eight-episode arc as Kasius, leader of the Kree Watch. 

Kasius rules over earth in the wake of a nuclear disaster from The Lighthouse, a bunker created in the event of full-on fallout. The blast devastates Earth and leaves the Kree in power with humans subjugated in slavery beneath them. But Kasius is bored with being all-powerful, and decides to eliminate the world's last living humans so that he may be free to do as he wishes, with a pile of money saved. 

Quake/Daisy Johnson/Skye (Chloe Bennet) then falls into his clutches, and his plan to resell her to the highest bidder makes him a target for S.H.I.E.L.D. The rescue causes a rebellion, and during the chaos, Kasius accidentally kills his own brother, Faulnak (Samuel Roukin). With nothing left to lose, Kaius swallows Odium — a substance which causes Kree superhuman strength for a short period of time before killing them — and plans on killing Alphonso "Mack" Mackenzie (Henry Simmons) in a final battle. But Kasius eventually dies at Mack's hands instead. 

It's a long way from Kree to an Illinois emergency room, but it's a credit to Rains that he makes both characters' journeys believable.