Gohan and ChiChi
ChiChi would always make Gohan Study but Gohan loved his mother. She never admitted she was prove of his talent of fighting. She always worried about Gohan and wanted the best for Gohan. Gohan had a dream that she was killed by Cell and was crying in his sleep. In Movie 5(lord slug) ChiChi killed 2 guards to save Gohan but she got knocked out so Gohan saved her and protected her.When he is older she and him get closer after Goku dies, they would talk more. Gohan would also help his mother get dinner and (at the end of DBZ)helped her pick a dress for a party.
Gohan and Goku
Gohan is very fond of Goku. As a boy Gohan would follow Goku everywhere and train with him. Gohan worried about his father when Goku fought. Goku had alot of Faith in Gohan, like when he was fighting with Cell. Goku would always save Gohan from his mother ChiChi. In Movie 1,DeadZone, Goku went to save Gohan because Gohan was kidnapped. When Goku died by Cell Gohan cried. And then when Goku came back to life Gohan was very happy. During the fight with Garlic Jr. in Movie 1, Goku was going to go in the deadzone and Gohan showed his secret power!
Gohan and the Ox king
Ox King and Gohan are close, sometimes, Oxking is Gohans Grandfather. In Movie 1 the Oxking got Gohan alot of Stuff and for Gohans Birthday the Oxking gave Gohan a gift and when Gohan saved the world from Cell they both sneaked out of the house and they talked and Gohan saved the Oxking XD
Gohan and Piccolo
Piccolo kidnapped Gohan so he could train him for the saiyans. Gohan did train and in most of the movies he and Gohan were in, Gohan would think of Piccolo or help fight along him and even save him! Piccolo saved Gohan from dying and jumped in front of Nappas blasted..and died =*( But Gohan wished him back and had a dream Piccolo was killed by Cell like ChiChi.
Gohan and Krillin
Gohan was Krillins Partern in fighting. When Krillin was hurt by Freiza, Gohan felt his secret power come out. Then Gohan was sad when Krillin died by Freiza. Gohan asked if Krillin was alive when Everyone was wished back to life. In teh Garlic Jr. Saga Gohan would fight along with Krillin and then he tried to help Krillin get a pearl for Maron.
Gohan and Goten
Goten is Gohan's little brother. Gohan helpped Goten because Goten was worried about a baby Dinosaurce who was kidnapped and Gohan saved the baby Dinosaurce. Gohan also gave Goten the Flying Nimbus! Goten looks up to Gohan. Goten cried like a baby when Goku told him and Trunks Gohan was dead. He also wanted to save Gohan in the tourament when Gohan was getting his energy stolen but Trunks was there to.
Gohan and Videl
Gohan marries Videl! Yes they MARRY! They met in Highschool...well a little eariler(about 5- 10 minutes) Videl wanted to know if Gohan was Saiyaman(which he is..) And Yes she found out he was! Then She Blackmailed Him!*evil music plays* (That *beep*) Anyways, he taught her how to fly which she did very good. Finally Videl had a crush on him and he even told Goku she was his girlfriend! Then after Buu did They married! In DBGT Gohan protected Videl from a blue light or something...Gohan really loves Videl and they have a child named Pan!
Gohan and Pan
Pan is Gohans Daughter. In the end of DBZ They weren't very closed because Pan always hanged with Goku(I guess she though Gohan was a nerd lol) In DBGT I guess they get more closer
Future Gohan and Future Trunks
This is a sad one... Gohan was Trunks master and he was training Trunks. Gohan Tried to make Trunks go Super Saiyan but Trunks could've into one day. One Day The Androids Attacked Again and Gohans only ad ONE arm because in the other fight with the androids Trunks was there and Gohan Sacifacred his arm to save Trunks. Anyways One day The Androids Attack AGAIN(repeating myself eh?) Gohan had to knock out Trunks because Trunks wanted to fight along with Gohan againist the Androids. Gohan died that Day and Trunks went Super Saiyan because of it.