Loves fighting strong opponents and will turn on his own allies if they interrupt his fights as he finds them annoying and bothersome. However, even though Curtis Rothko manages to defeat him and escape his pursuit Jack Friday doesn't hate him. In fact he strangely mentions that he actually likes Curtis Rothko. Though the reason for this may be that he sees Curtis Rothko as a worthy opponent even though he has yet to meet the man in person.
Currently the mysterious masked pilot of the Desphys who would face off against Curtis Rothko as he was rescuing Font Baud. As a testament to his skill he nearly fatally damages the Ghost and almost defeated Curtis Rothko. However, when Jack Friday attacked his own forces for interrupting his battle Curtis Rothko would use the chaos to knock over a building on top of him. Not to be stopped Jack Friday broke free and gave chase. However, Jack Friday is unable to stop Curtis Rothko from escaping onto the Manzana Flor. Afterwards Jack Friday receives a call from his boss and Jack Friday swears to catch Font Baud, though he only knows him as the Zaku II pilot that dodged his attacks, and Curtis Rothko whom he calls Silvy.