7.6/10529 votes#1 - Who Smarted?
Season 18 Episode 1 - Aired 4/19/2021
Worried that he's not smart enough for Hayley, Jeff undergoes an experimental intelligence enhancement procedure at the CIA. Roger recruits Steve to help him harvest snake venom.
Director: Chris Bennett
Writer: Jeff Kauffmann
6.6/10432 votes#2 - Russian Doll
Season 18 Episode 2 - Aired 4/26/2021
Stan becomes infatuated with a doll that the CIA wants to use to spy on the Russians.
Director: Josue Cervantes
Writer: Zachary Rosenblatt
6.7/10413 votes#3 - Stan Moves to Chicago
Season 18 Episode 3 - Aired 5/3/2021
Stan moves to Chicago to become a comic while Steve and Hayley host Roger for a nice night in.
Director: Shawn Murray
Writer: Nic Wegener
6.5/10411 votes#4 - Shakedown Steve
Season 18 Episode 4 - Aired 5/10/2021
Steve and Jeff try to bond as brothers while the rest of the family visits an escape room.
Director: Rodney Clouden
Writer: Tim Saccardo
6.1/10397 votes#5 - Klaus and Rogu in "Thank God for Loose Rocks": An American Dad! Adventure
Season 18 Episode 5 - Aired 5/17/2021
When the family goes to a dude ranch, Klaus and Rogu have to work together to survive in the wilderness.
Director: Jansen Yee
Writer: Joe Chandler
6.4/10390 votes#6 - The Wondercabinet
Season 18 Episode 6 - Aired 5/24/2021
Steve spins out about his future, but a radio show about new age mysticism gives him a hopeful new understanding of life. Roger struggles to get into the adult film industry.
Director: N/A
Writer: Brett Cawley, Robert Maitia
6.2/10407 votes#7 - Little Bonnie Ramirez
Season 18 Episode 7 - Aired 5/31/2021
After a series of boring personas, Roger goes to great lengths to prove to Francine he still has "his edge".
Director: Jennifer Graves
Writer: Parker Deay
6.2/10382 votes#8 - Dancin' A-With My Cells
Season 18 Episode 8 - Aired 6/7/2021
Stan tries a new, cutting edge parenting approach DNA splicing.
Director: Tim Parsons
Writer: Charles Suozzi
6.5/10389 votes#9 - Mused and Abused
Season 18 Episode 9 - Aired 6/14/2021
Roger reveals a secret passion to Klaus; Stan and Francine seek revenge on Bazooka Sharks management.
Director: Chris Bennett
Writer: Sam Brenner
7.1/10358 votes#10 - Henderson
Season 18 Episode 10 - Aired 6/21/2021
Stan's childhood imaginary friend returns to collect a debt. Klaus has a big date and needs a fishbowl upgrade.
Director: Shawn Murray
Writer: Joel Hurwitz
7.3/10361 votes#11 - Hot Scoomp
Season 18 Episode 11 - Aired 6/28/2021
Hayley searches for guidance and instead finds a community of 'cool butts.'
Director: John Drake O'Day
Writer: Nicole Shabtai
7.1/10362 votes#12 - Lumberjerk
Season 18 Episode 12 - Aired 7/5/2021
Stan is forced to partner with Jeff in a lumberjack competition; Steve, Francine and Snot enter a contest to win a vintage pickup truck.
Director: N/A
Writer: Paul Stroud
6.8/10369 votes#13 - Stan & Francine & Stan & Francine & Radika
Season 18 Episode 13 - Aired 7/12/2021
Stan and Francine go back in time to settle an argument.
Director: Jennifer Graves
Writer: Steve Hely
7.6/10400 votes#14 - Flush After Reading
Season 18 Episode 14 - Aired 7/19/2021
Francine and Roger get lost in a good book -- or five -- after Francine escapes an embarrassing situation; Stan reluctantly hangs out at the library.
Director: Tim Parsons
Writer: Laura Beason
7.4/10356 votes#15 - Comb Over: A Hair Piece
Season 18 Episode 15 - Aired 7/26/2021
Stan finally decides to do something about his secret baldness and enlists the help of Josay Bosay, Roger's famed hair-stylist-to-the-stars persona.
Director: Chris Bennett
Writer: Brett Cawley, Robert Maitia
6.6/10251 votes#16 - Plot Heavy
Season 18 Episode 16 - Aired 8/2/2021
After Stan sells off the coveted family plot, the family opens their own cemetery in the backyard with the help of basketball Hall-of-Famer Scottie Pippen.
Director: Jansen Yee
Writer: Soren Bowie
7.6/10321 votes#17 - The Sinister Fate!!
Season 18 Episode 17 - Aired 8/9/2021
A new friendship causes Hayley to start worrying she might be slowly turning into Francine. Steve and his friends try out for Roger's improv troupe.
Director: Josue Cervantes
Writer: Jeff Kauffmann
6.8/10238 votes#18 - Dr. Sunderson's SunSuckers
Season 18 Episode 18 - Aired 8/16/2021
Hayley and Jeff help one of Roger's personas run a solar company.
Director: Shawn Murray
Writer: Nic Wegener
7.3/10247 votes#19 - Family Time
Season 18 Episode 19 - Aired 8/23/2021
Stan and the family go out to dinner at a buffet restaurant. Roger becomes a flower.
Director: John Drake O'Day
Writer: Zachary Rosenblatt
6.6/10223 votes#20 - Cry Baby
Season 18 Episode 20 - Aired 8/30/2021
When Stan realizes he can't cry, he asks Steve to teach him empathy.
Director: Jansen Yee
Writer: Joe Chandler
6.8/10215 votes#21 - Crystal Clear
Season 18 Episode 21 - Aired 9/6/2021
Stan gets in over his head trying to impress Toshi's dad; Klaus and Jeff head to the country for a weekend getaway.
Director: N/A
Writer: Parker Deay
6.9/10221 votes#22 - Steve's Franken Out
Season 18 Episode 22 - Aired 10/25/2021
When Principal Lewis threatens to cancel science club, Steve takes matters into his own hands in a monstrous way.
Director: Josue Cervantes
Writer: Alisha Ketry
The Best Episodes of American Dad! Season 18
Every episode of American Dad! Season 18 ranked from best to worst. Discover the Best Episodes of American Dad! Season 18!
The series focuses on an eccentric motley crew that is the Smith family and their three housemates: Father, husband, and breadwinner Stan Smith; his better...
Genres:AnimationComedy
Season 18 Ratings Summary
"Who Smarted?" is the best rated episode of "American Dad!" season 18. It scored 7.6/10 based on 529 votes. Directed by Chris Bennett and written by Jeff Kauffmann, it aired on 4/19/2021. This episode is rated 1.0 points higher than the second-best, "Russian Doll".