Guest Stars Curtis Lum as Calvin Sedale Threatt Jr. as Levi Brendan Fletcher as Rick Marzdan Caroline Cave as Beth Marzdan Michael Rogers as Commander David Kyle Luc Roderique as Ian Sutton Co Starring Kiomi Pyke as Meredith Todd Thompson as Doctor Logan Shawn Ahmed as Naval Lab Tech Dawson Lissa Neptuno as Orderly Melanie Rose Wilson as Selena