Marvel's Agents of S.H.I.E.L.D. has released the first promo for next week’s episode, which will feature the hotly anticipated return of fan favorite Patton Oswalt as identical brothers and S.H.I.E.L.D. agents Sam and Billy Koenig.
ABC has released all six episodes of Marvel's Agents of S.H.I.E.L.D.: Slingshot, the spinoff featuring Elena "Yo-Yo" Rodriguez (Natalia Cordova-Buckley), the Inhuman with the power of super-speed, and you can watch it in full right HERE.