Voice actor: Sam Riegel

(taken from wiki entry)

Stahl has a gentle and trusting personality and is one of the few in the army with common sense. Though he is scatterbrained and acts a bit silly from time to time, he is very attentive, kind to others, and has a big heart. His supports with Robin and Maribelle reveal that he is very good at reading people, often knowing what they want before they say it. 

Stahl considers himself the most “average" member of the army, seeing that there is an even amount of people stronger and weaker than he is. He is so abnormally normal that, in his supports with Miriel, it's revealed that his combat performance is used as the exact median for the performance of everyone in the camp. Despite this, what is most important to him is helping others and being of service to his friends, almost bordering on self-sacrifice. 

The more serious Shepherds criticize his mellow personality, but he will work hard when he believes it is necessary. He is the biggest glutton in the army and mentions his never-ending hunger at all hours.