With only a few Marvel movie characters you can reasonably drop into Agent Carter for Hayley Atwell to sass, it was inevitable they’d turn to human figure-head and superhero godhead Stan Lee.
According to Variety, Stan Lee will appear in Agent Carter Episode 4 ‘The Blitzkrieg Button’ in a scene alongside Dominic Cooper’s Howard Stark.
And here he is:

Maybe he’s playing Marvel founder Martin Goodman…
Agent Carter is currently airing every Tuesday on ABC in the US. A UK broadcaster is yet to be announced. You can buy Captain America: The First Avenger on DVD for £6.99 from Amazon.co.uk. Get more superhero news with every issue of SciFiNow.