Facial Features: August Diehl has sharp, angular facial features. 

He often sports a clean-shaven look or light stubble, which accentuates his high cheekbones and defined jawline.

Eyes: His eyes are a striking blue, often giving him an intense, almost piercing gaze.

Hair: He has a dark brown hair that he sometimes wears short or in a slightly longer, tousled style.

Height and Build: Diehl stands at about 5'10" (178 cm) and has a lean, athletic build.