Jack Finnegan and Sheila Carter

Jack and Sheila had an affair and share a son Finn Finnegan (deceased) and a grandson Hayes Finnegan.

Storylines
Sheila and Jack met at work. Jack was married to his wife Li Finnegan who was very busy with her work. The couple also had problems with conceiving. Frustrated Jack turned to Sheila for comfort and sex which resulted in a pregnancy. Jack convinced Sheila to let him and his wife adopt the baby boy. Sheila agreed, but was watching Finn's life from far. Jack didn't tell his wife that their adopted son Finn is his biological son because he didn't want her to know about the affair he had with Sheila.