At the end of "Guardians," Gunn even included a cameo from Howard the Duck (Seth Green) a comedy character from the 1970s. When Gunn included Howard the Duck in "Guardians," audiences unexpectedly ...

Howard the Duck was a massive flop ... even if it’s just in cameo form. In those cameos, actor Seth Green provided the voice. Now we know he did it as an attempt to salvage the character ...