American Dad! “A Little Mystery” S18E11 September 11 2023 on TBS

Tonight (Monday September 11 2023), TBS broadcasts an episode of the series American Dad!!

A Little Mystery Season 18 Episode 11 Episode Summary

In this episode, Hayley takes a playful approach to add some excitement to her relationship with Jeff. She encourages Jeff to make a new friend, aiming to inject a little mystery into their dynamic. However, things take an unexpected turn as the quest for mystery leads to more puzzling and humorous situations than Hayley could have ever anticipated.

Meanwhile, Francine takes on an unusual mission to grow the world’s longest fingernails. As she ventures into this quirky endeavor, viewers can expect a hilarious exploration of the lengths she’ll go to achieve her goal.

What Time is the “A Little Mystery” Episode On?

The A Little Mystery episode of American Dad! will be broadcast on September 11 2023 on TBS at 10:00 PM at ET/PT.

Is the “A Little Mystery” Episode New?

The A Little Mystery episode of American Dad! is all new!

American Dad! A Little Mystery Cast & Stars

Main Cast
Seth MacFarlane voices Stan Smith and Roger
Wendy Schaal voices Francine Smith
Scott Grimes voices Steve Smith
Rachael MacFarlane voices Hayley Smith-Fischer (
Dee Bradley Baker voices Klaus Heisler
Jeff Fischer voices Jeff Fischer
Patrick Stewart voices Deputy Director Avery Bullock

A Little Mystery Episode Videos & Previews


Watch American Dad! A Little Mystery Online

Watch the show online

American Dad! Series Information

Stan Smith is a CIA agent painfully dedicated to homeland security. His home life includes doting wife Francine, a ditzy housewife, liberal daughter Hayley and socially awkward teenaged son Steve. Also living in the family's Langley Falls, Va., home are Klaus, a goldfish with the brain of an East German Olympic ski jumper, and Roger, an escaped alien from Area 51, who Stan houses in defiance of his employer due to owing Roger a `life debt'. Sounds just like the typical American family, right? Maybe not.

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