Suggestions by @whatsthatthing

Steven Yeun

as Star-Lord in Recasting the MCU but only actors whose first name begins with an S

Shane Harper

as Ikaris in Recasting the MCU but only actors whose first name begins with an S

Shane Harper

as Winter Soldier in Recasting the MCU but only actors whose first name begins with an S

Stephen Odubola

as Heimdall in Recasting the MCU but only actors whose first name begins with an S

Sam Daly

as Fandral in Recasting the MCU but only actors whose first name begins with an S

Scottie Thompson

as Jennifer Walters in Recasting the MCU but only actors whose first name begins with an S

Sarah Shahi

as Jennifer Walters in Recasting the MCU but only actors whose first name begins with an S

Scottie Thompson

as Wasp in Recasting the MCU but only actors whose first name begins with an S

Stevonte Hart

as Patriot in Recasting the MCU but only actors whose first name begins with an S

Simone Joy Jones

as Shuri in Recasting the MCU but only actors whose first name begins with an S

Shalim Ortiz

as The Collector in Recasting the MCU but only actors whose first name begins with an S

Savannah Lee Smith

as Shuri in Recasting the MCU but only actors whose first name begins with an S

Stacy Keach

as Thanos in Recasting the MCU but only actors whose first name begins with an S

Sophie Nélisse

as Yelena Belova in Recasting the MCU but only actors whose first name begins with an S

Sam Richardson

as War Machine in Recasting the MCU but only actors whose first name begins with an S

Sam Jones III

as Falcon in Recasting the MCU but only actors whose first name begins with an S

Scott Caan

as Red Skull in Recasting the MCU but only actors whose first name begins with an S

Shelley Hennig

as Lady Sif in Recasting the MCU but only actors whose first name begins with an S

Sophie Skelton

as Lady Sif in Recasting the MCU but only actors whose first name begins with an S

Sarah Hyland

as Jane Foster in Recasting the MCU but only actors whose first name begins with an S