John Juergens is the son of Ricky Underwood and Amy Juergens. He is also the paternal biological grandson of Bob and Nora Underwood, paternal adoptive grandson of Sanjay and Margaret Shakur, and maternal grandson of George and Anne Juergens, as well the nephew of Ashley Juergens, who named him, and Robert Scott Johnson. He is portrayed by Matthew and Joseph Levinson. He was conceived in the summer of 2008 after his mother and father had a one-night stand at band camp. There was a lot of drama concerning him.