One popular fan theory is that Team Rocket's Giovanni is actually Ash's father. Though Giovanni was Silver's father in the games, his anime counterpart isn't known to have any children, with Madame Boss being his only confirmed relative.
Ash's dad has never been an active presence in the Pokémon anime TV series or the accompanying movies. While he's mentioned a few times early in the anime, he's mostly a mystery — fans have never gotten to learn much about who or where he is, or why he's absent from Ash's life.
Silver isn't Ash's father, but he is Delia's. Making him Ash's maternal grandfather instead. As with the above there's the resemblance in appearance, personality and the fact he mentions Ash.
Sato Ketchum is Ash's son. He is seen in the pokemon anime series Pokemon Heart and Soul when Celebi sends Ash, Hari and Brock into the future. His name is based on Ash's japanese name Satoshi and his team is based mainly on Red's team in the Pokemon manga apart from having a Charizard instead of Venusaur.
Emi is the younger daughter of Delia and Satosho Ketchum and the younger sister of Ash. Emi is an original character created by Atticus and becomes a major character in Pokemon crossover adventure stories. Emi first appears with the others in The Poef2ffwer of Two.
The translation compares Professor Oak to Ash's family, because Professor Oak has served as a mentor figure to Ash. In some respects, he's a father figure. However, it's highly unlikely that Professor Oak is Ash's literal father, but, rather, like a father figure.
More specifically, that Team Rocket's President Giovanni is actually Ash's father, and that he hired the bumbling trio of Jessie, James, and Meowth, to perpetually fail to "steal Pikachu" in an indirect attempt to keep watch over his son.
With Episode 3, "Ivysaur's Mysterious Tower," we go even more in-depth into these two characters' newly kindled friendship. Just like real brothers, Ash and Goh fight over the top bunk bed at the lab and compete to see how fast they can brush their teeth.
In October of that same year, Ash and Misty's first daughter, Skylar, was born. After Skye was born, things became more hectic for the Ketchums between having a new baby, Ash's job as Champion and a G-Men agent, and Misty constantly needing to travel back and forth between Pallet Town and the gym in Cerulean.
Alexandra Ketchum is the twin sister of Ash Ketchum, the daughter of Delia Ketchum and Anthony Ketchum, when she turned ten years old she was met by Celine Walters and Gary Oak is then met by Professor Oak, and is then in side and is then hugged by Charmander who is very excited about being chosen.
If the 10 months and 10 days refer to Delia's pregnancy, the anime begins when Ash is on his 10 year lifespawn, and so at the end of XYZ he's 15 years old and a half (almost 16).
Serena is a Pokemon trainer who has a crush on Ash Ketchum . She briefly met him at Professor Oak's Summer Camp in Pallet Town years ago. Serena is a traveling companion of Ash Ketchum, Clemont, and Bonnie. Serena blushes when she sees him.
Ash defeats Rudy in battle, and before they all depart, Rudy asks Misty to stay on the Island with him. She refuses, and continues her journey with Ash. That is what happened in the English dub. In the original Japanese version of the episode, Rudy asked the 1o year old Misty to marry him.
Ash shows Serena more affection and consideration than he has past travel companions throughout the series. He worries about her feelings and is more touchy-feely with Serena than he is with other companions, placing a hand on her shoulder and even holding her hand in one episode.
Most notable about their relationship is how often Goh blushes and praises Ash in the first three episodes of Pokémon Journeys. The two met when they both got on the legendary Pokémon Lugia's back, and after that bonding experience Goh accepts Ash as his friend.
