Hayley Smith is the name of two fictional characters:

She also was the original voice for Hayley Smith on American Dad!

MacFarlane has noted her similarities to Hayley Smith on American Dad!

Prior to Mitch's arrival media sources it was reported that he would become attracted to the character of Hayley Smith (Bec Cartwright).

The album's title is an homage to MacFarlane's best-known voice-acting role as Hayley Smith in her brother's series American Dad!

In another storyline Sam begins a relationship with Hayley Smith (Bec Cartwright).

Rebecca Cartwright (Hayley Smith)

He ends up "copping a serve" from his sister because he has left behind a broken engagement and kissed Hayley Smith (Bec Hewitt).

Hayley Smith in American Dad!

Hayley Smith - Steve's sister that he shows that he's in love with.