ER alum Goran Visnjic is set to co-star opposite Halle Berry in CBS‘ upcoming summer drama series Extant, from Steven Spielberg’s Amblin TV and CBS Television Studios. The serialized mystery thriller centers on Molly (Berry), an astronaut trying to reconnect with her family when she returns after a year in outer space. Her experiences lead to events that ultimately will change the course of human history. Visnjic will play Molly’s husband John Watts. Also cast in the series is Michael O’Neill as Alvin Sparks, a former astronaut who now is the director of the privatized space program. They join previously cast Camryn Manheim. Visnjic most recently starred on ABC’s Red Widow. He is repped by WME and Management 360.