As if his surprise appearance at Marvel Studios' Hall H presentation on Saturday -- dressed as the god of mischief, no less -- weren't enough to forever endear him to fans, actor Tom Hiddleston also gleefully acted out the plot of the upcoming Thor: The Dark World at Comic-Con International using Loki and Thor action figures.

You can watch the video below. But fair warning: There may be spoilers. The new trailer for director Alan Taylor's Thor: The Dark World debuts Aug. 7.