It features guest performances from Sharon Lawrence and Shannon Sharpe, as well as several recurring voice actors and actresses from the series.
Deputy Director Bullock announces they are bringing in Shannon Sharpe, a specialist, to catch their previously escaped alien.
When Stan meets with Roger at Coughy's Coffee Shop to warn him, he spots Scarlett Reynolds, an old CIA boot camp crush.
Before doing so, she reveals to Stan that she ran into him at the coffee shop on purpose because she knew from the start that he was harboring an alien and that she never saw him, even back at CIA boot camp, as anything worthwhile.
They scramble to restore Roger's body and as they leave, Stan places a knife in Shannon's hand and tilts a picture on the wall to make it look like a suicide.
At school, Steve is struck with good luck, which appears to be confirmed when he scratches lottery tickets with Klaus and wins.
At school during a game of dodgeball in gym class, the panties continue to work their magic but after showering, Steve returns to his locker to find them missing and spots Snot running out the door.
Recurring voice actors Curtis Armstrong, Elizabeth Banks, Mike Barker, Mike Henry, David Koechner, Teri Lyn Rodriguez, Patrick Stewart, Alec Sulkin, Daisuke Suzuki, Eddie Kaye Thomas, and John Viener made minor appearances as well.
Club gave the episode an A, saying: "Perhaps the most surprising thing about "The Scarlett Getter" is that the big guest star, Shannon Sharpe, fit in perfectly.
Although there were a lot of the typical slapstick American Dad comedy bits, some of the writing was subtle enough that I feel like I could go back and watch this episode again and pick up a ton of gags that I missed the first time around.