Jacob Lyons is the only child of Hayley and Jack Lyons. He is also the boyfriend/eventual husband of Daphne Vasquez.
Jacob was born to Jack and Hayley Lyons and was raised as an only child. He developed Asperger's syndrome at a young age and has trouble with social interaction with the people around him including his mother Hayley. Jacob later meets Daphne who he had eventually fallen in love with and started dating her.