Sarah Grohl

 is a recurring character in Defending Jacob. She is portrayed by Jordan Alexa Davis.

Playing music and posting it online is a hobby of Sarah's using her acoustic guitar. She also checks social media regularly, interacting with friends from Archer Middle School.

After Benjamin Rifkin was murdered and his body discovered in Cold Spring Park, Sarah became more unsettled. She did not reveal what she knew about Ben's murder to Andy Barber and Pam Duffy in an interview at the school later gave anonymous tips to Andy and Pam, suggesting Derek Yoo may have been involved in the murder.

After speaking with Andy again, she revealed that Derek wanted a relationship with her but instead was jealous when Ben was also socialising with her. After Ben asked for a revealing picture of her which she sent, Derek found out and took Ben's phone a couple of days before the murder to try and win favour with Sarah. She refused, and Derek walked off. Sarah believed that it was no coincidence that then was murdered of this act committed by Derek.

Jacob Barber was accused of the murder of Ben and while he was at home, Sarah visited frequently to comfort Jacob and play video games with him. She also revealed today that she suspected Derek may be involved in Ben's murder.