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American Dad! S21E21 — Guardian
6.2
American Dad!•Season 21•Episode 21

Guardian

6.2/10 · 4 votesMar 17, 202522 min

Ranked #22 of 22 in Season 21•−0.8 vs season avg

Discussion

Stan uses a mothballed military computer to do Steve's math homework, starting the clock toward nuclear annihilation.

Directed byJim Parsons
Written byBrian Boyle
Previous episodeE20 · Silicon SteveNext episodeE22 · What Great Advancements!
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Cast6

Seth MacFarlane

Seth MacFarlane

Stan Smith / Roger (voice)

Wendy Schaal

Wendy Schaal

Francine Smith (voice)

Rachael MacFarlane

Rachael MacFarlane

Hayley Smith (voice)

Scott Grimes

Scott Grimes

Steve Smith (voice)

Dee Bradley Baker

Dee Bradley Baker

Klaus (voice)

Jeff Fischer

Jeff Fischer

Jeff Fischer (voice)

Crew2

B

Brian Boyle

Writer

Jim Parsons

Jim Parsons

Director

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Episode Summary

"Guardian" is episode 21 of American Dad! season 21. It scored 6.2/10 from 4 votes, ranking #22 of 22 episodes this season (season average 7.0). Directed by Jim Parsons and written by Brian Boyle, it aired on March 17, 2025.

Next: E22 · What Great Advancements!Best of Season 21