Comedian Patton Oswalt will be returning to Marvel's Agents of SHIELD in an episode called Hot Potato Soup set to air January 31st. According to EW.com, Oswalt will be reprising his role of Sam and Billy Koenig, who is being chased down for the Darkhold. During the return episode this week, Phil Coulson (Clark Gregg) said they were going to give it to someone who is good at making things disappear. It appears now that he meant one of the Koenig family.
And, according to the report, we will finally learn some of the Koenig family secrets.
Oswalt has played 3 Koenigs so far. Eric, who ran a secret base and was killed by Grant Ward (Brett Dalton). Billy, who runs a different secret base. And Sam who was in charge of Theta Protocol which ended up being the Helicarrier that saved the day in Avengers: Age of Ultron. There has been a reference to their being 13 Koenigs. Perhaps they are LMD's as well.
And from the photo shown, it appears at least one of the Koenig's likes to do stand-up comedy.