|Birth name||Jacob Geiszler|
|Family||Newton Geiszler (son)|
Monica Schwartz (lover)
Illia Geiszler (brother)
|Appears in||Pacific Rim: The Official Movie Novelization (mentioned)|
Jacob Geiszler is a piano tuner. During the 1980s, he meets Monica Schwartz, an opera singer, in Amsterdam. The two begin an affair despite their marriage to other people. In 1990, Monica gives birth to their son, Newton.
Jacob proposes to Monica in the hopes that she will marry him. However, she rejects his offer of marriage. Shortly after Newton’s birth, she left to continue touring. Jacob raises Newton with the help of his brother, Illia Geiszler.