List of American Dad! characters

The voice actors have stated that because of their personalities and tendency to goof off when together as a group, they would never get anything completed if they performed their lines collectively.

[1] Stanford Leonard "Stan" Smith (voiced by Seth MacFarlane) is the title character on American Dad!

[3] Making his extreme-measure taking worse, Stan is utterly inconsiderate and insensitive, thus he does not stop to think of how others are negatively impacted, nor does he care.

Francine Lee Smith (née Ling, voiced by Wendy Schaal) is Stan's wife and the mother of Steve and Hayley.

[5] Ironically, it is mostly in the midst of all her moralizing and urging others to do the right thing that she demonstrates blatant inappropriateness, indecorum, and inelegance.

Sporadically while engaged in moralizing others, Francine will randomly throw in remarks and behaviors that are in bad taste and lack all propriety.

Adding to her paradoxical nature, Francine's behaviors have been known to become downright immoral and sometimes even fiendish, all the while trying to get others to live more wholesomely and do what is right.

Hayley Dreamsmasher Smith–Fischer (voiced by Rachael MacFarlane) is Stan and Francine's new-age hippie daughter and college-aged oldest and the sister of Steve.

Steven Anita "Steve" Smith (voiced by Scott Grimes) is the baby of the family and sometimes middle child who is Stan and Francine's high-school aged son and the brother of Hayley.

He typically exhibits a lighthearted, carefree temperament while also engaged in his freakish grossness, outrageous malice, and rascally shenanigans.

Initially being banned by the family from going into the public and often being depressive because of that in early episodes, Roger later begins to be shown to assume different aliases and has a carousel of seemingly endless costumes, which allows him to do almost everything he wants.

Klaus Heissler (voiced by Dee Bradley Baker in a German accent) is the Smith family's hapless and saturnine goldfish.

[3] For much of the series discounting its beginnings, the Smith family and particularly Roger have been shown to treat Klaus with disdain, take him for granted, and even mistreat him.

Ironically, Klaus started out on the series as a bully, known for his ridicule and cruel teasing of all the show's main characters, particularly Roger.

An unemployed high school dropout with (initially) no apparent skills, or employment motivation, he tends to be emasculated, weak-willed, pathetic and frequently behaves naively.

In the episode "Joint Custody" however, Jeff moves in with the Smiths as a result of Stan having a demolition crew crush his van into smithereens with a wrecking ball.

In "Lost in Space", Jeff escapes from an alien spaceship and starts to make his way back to Earth.

In a Season 10 episode "Longest Distance Relationship", Jeff is able to communicate with Hayley through a CB radio and discovers a way to return to earth through a wormhole.

Jeff, accompanied by Sinbad's Ghost, arrives 60 years in the future and learns that he cost her a chance to have a great life with Millionaire Matt Davis.

Unhappy with having upset the family and giving the elderly Hayley a heart attack, he and Sinbad's Ghost return through the wormhole.

Rogu (voiced by Dee Bradley Baker) – A homunculus that formed from Roger's tumor in "Persona Assistant" and since then lives in the Smith house.

The main characters of the show. From left to right: Roger , Francine , Stan , Klaus , Hayley and Steve .
Steve's friend group. From left to right: Toshi, Snot, Barry and Steve.