Guest Stars Monique Gabriela Curnen as Melissa Ramirez Adam Irigoyen as Isaac Rodriguez Gabrielle Rose as Darlene Cole Fiona Fu as CNSA Head / Li Jun Felicia Patti as Cassie Brian Markinson as George Lane Martin Cummins as Jack Willmore Diana Bang as Freddie John Murphy as Ryan Masters Anthony Ingram as ESA Head / Ted Salter Sharmaine Yeoh as Chinese Translator Lydia Campbell as Jane Ryan Mah as Engineer #1 / Dave Adam Pateman as Engineer #3 / Adam Liza Cosier as Russian Translator