Johansson was born in New York City. Her father, Karsten Johansson, is a Danish-born architect, and her paternal grandfather, Ejner Johansson, was a screenwriter and director. Her mother, Melanie Sloan, a producer, comes from an Ashkenazi Jewish family from the Bronx. Johansson's parents met in Denmark, where her mother lived with Johansson's maternal grandmother, Dorothy, a former bookkeeper and schoolteacher. Johansson has an older sister, Vanessa, who is an actress; an older brother, Adrian; a twin brother, Hunter (who appeared in the film Manny & Lo with Scarlett) and an older half-brother, Christian, from her father's first marriage.
Johansson was born in New York City. Her father, Karsten Johansson, is a Danish-born architect, and her paternal grandfather, Ejner Johansson, was a screenwriter and director. Her mother, Melanie Sloan, a producer, comes from an Ashkenazi Jewish family from the Bronx. Johansson's parents met in Denmark, where her mother lived with Johansson's maternal grandmother, Dorothy, a former bookkeeper and schoolteacher. Johansson has an older sister, Vanessa, who is an actress; an older brother, Adrian; a twin brother, Hunter (who appeared in the film Manny & Lo with Scarlett) and an older half-brother, Christian, from her father's first marriage.
