Guest Stars Roger Craig Smith voices Captain America Mick Wingert voices Tony Stark / Iron Man Troy Baker voices Hawkeye Travis Willingham voices Thor Laura Bailey voices Black Widow Liam O'Brien voices Red Skull Fred Tatasciore voices Crossbones Wynn Everett voices Madame Masque Mark Hamill voices Arnim Zola Julie Nathanson voices Crimson Widow Tara Strong voices Typhoid Mary