Jennifer Garner isn't afraid to step outside her comfort zone for comedy. The actress joined the new third season of the cult comedy classic, and one particular episode called for her character to trip out on magic mushrooms — which was an experience she's not particular familiar with.«I haven't seen the episode,» Garner told ET's Will Marfuggi on the carpet at the Los Angeles premiere of 's third season on Wednesday. «It was terrifying — any time I have to play inebriated, or any altering anything — to me.