Guest Stars David Andrews as Secretary of Defense Haley Frommer Abby Ryder Fortson as Harper Weil Alan Ruck as Executive Director Alex Myers Jamison Jones as Harrison Weil Gwynyth Walsh as Dr. Catherine Tully Terrell Ransom Jr. as Ethan Co Starring Ona Grauer as Meg Maeve Dudley as Jane Catherine Lough Haggquist as Renee Arien Boey as Lucas Ken Tremblett as Lucas' Dad Olivia Dewhurst as Kelly Jessie Fraser as Kelly's Mom Curtis Lum as Rock Scientist Romuald Hivert as Armed Soldier Chantele Francis as Tech #2 Loretta Walsh as Lucas' Mom Daryl King as Tech #1