Seiyuu

Nozawa Masako:

Gohan's voice in the original Japanese version is done by Nozawa Masako, or in English format, Masako Nozawa. When I first heard her voice after watching the dub (which I can't believe I ever did o_o), I was a little shocked. Her voice is quite different than Stephanie Nadolny's (Gohan's English voice actress) voice, but in a good way. Masako-san manages to make Gohan ubber kawaii even when he's saying something serious. Her voice really does fit him when he's a child, and still fits him as an adult (she has a masculine voice...? XD).

XP I'm not too familiar with most of the characters she's done through her career (that's spanned out for 40 years) except for her roles in the Dragonball series, Guilmon from Digimon and Hina from Love Hina, but here's a list of characters she's been a seiyuu for:

80 Days Around the World With Willy Fog (TV) as Chico
Adieu Galaxy Express 999 (movie) as Tetsuro Hoshino
Adventures of Tom Sawyer (TV) as Tom Sawyer
Ai Shoujo Pollyanna Monogatari (TV) as Polly
Alice in Wonderland (TV) as Benny Bunny
Alps no Shoujo Heidi (TV) as Organ player boy
Animation Kikou Marco Polo no Boken (TV) as Buddy
Aoi Blink (TV) as Blink; Kakeru
Astro Boy (TV)
Boken Gabotenjima (TV) as Gabo
Calimero (TV) as Buta
Case Closed (TV) (ep 219)
Cho Denji Robo Combattler V (TV) as Orleana
Daisuki! Bubu- Chacha (TV) as Houster
Dango Gonta (ONA)
Digimon Tamers (TV) as Guilmon; narrator
Digimon Tamers Movie 6: The Runaway Digimon Express as Guilmon
Digimon Tamers: The Adventurers' Battle (movie) as Guilmon
Digital Monster X-Evolution (movie) as Dukemon
Dokonjo Gaeru (TV) as Hiroshi
Doraemon (TV) as Doraemon (1973, 2nd)
Doraemon: Nobita & Robot Kingdom (movie) as Krulinpa
Doraemon: Nobita Gets Lost in Space (movie) as Log
Dororon Enma-kun (TV) as Enma-kun
Dr. Slump 2 (TV) as Son Goku (ep 4,54-57,71)
Dragon Ball (TV) as Son Goku
Dragon Ball GT (TV) as Son Gohan; Son Gokû; Son Goten
Dragon Ball GT: A Hero's Legacy (special) as Son Goku; Son Goku Jr
Dragon Ball Movie 1: Curse of the Blood Rubies as Son Goku
Dragon Ball Movie 2: Sleeping Princess in Devil's Castle as Son Goku
Dragon Ball Movie 3: Mystical Adventure as Son Goku
Dragon Ball Movie 4: The Path to Power as Son Goku
Dragon Ball Z (TV) as Son Gohan; Son Goku; Son Goten
Dragon Ball Z Movie 10: Broly: Second Coming as Son Gohan; Son Goten; Son Goku
Dragon Ball Z Movie 11: Bio-Broly as Son Goten; Son Goku
Dragon Ball Z Movie 12 as Son Goku; Son Gohan; Son Goten
Dragon Ball Z Movie 13 as Son Gohan; Son Goku; Son Goten
Dragon Ball Z Movie 1: The Deadzone as Son Gohan; Son Goku
Dragon Ball Z Movie 2: The World's Strongest as Son Gohan; Son Goku
Dragon Ball Z Movie 3: The Tree of Might as Son Gohan; Son Goku; Taurus
Dragon Ball Z Movie 4: Lord Slug as Son Gohan; Son Goku
Dragon Ball Z Movie 5: Cooler's Revenge as Son Gohan; Son Goku; Bardock
Dragon Ball Z Movie 6: Return of Cooler as Son Gohan; Son Goku
Dragon Ball Z Movie 7: Super Android 13 as Son Goku; Son Gohan
Dragon Ball Z Movie 8: The Legendary Super Saiyan as Son Gohan; Son Goku
Dragon Ball Z Movie 9: Bojack Unbound as Son Gohan; Son Goku
Dragon Ball Z Special 1: Bardock, The Father of Goku as Bardock; Son Goku
Dragon Ball Z Special 2: The History of Trunks as Gohan; Son Goku; [+ unlisted credits]
Dragon Ball Z: Plan to Destroy the Saiyajin (OAV) as Son Goku; Târesu
Dual! Parallel Trouble Adventure (TV) as Reika Nanjoin
Elmer no Bouken: My Father's Dragon (movie) as Near-Sighted Mouse
Galaxy Express 999 (TV) as Tetsuro Hoshino
Galaxy Express 999 Movie as Tetsuro Hoshino
Galaxy Express 999: Eternal Fantasy (movie) as Tetsurô Hoshino
Ganba no Boken (TV) as Ganba
Gegege no Kitaro (TV) as Kitarou
Ginga Hyouryuu Vifam (TV) as Kent Norton
Ginga Hyouryuu Vifam 13 (TV) as Kents Norton
Ginga Tetsudo 999: Eien no Tabibito Emeraldas (special) as Tetsuro Hoshino
Ginga Tetsudo 999: Kimi wa Haha no You ni Aiseru ka!! (special) as Tetsuro Hoshino
Hakkenden: Legend of the Dog Warriors (OAV) as Kamezasa
Hamtaro (TV) as Grandmother
Hey! Bunbuu (TV) as Bunbuu
Hokkyoku no Muushika Miishika (movie) as Miishika
Hoshi no Ko Poron (TV) as Poron
Huckleberry no Bouken (TV) as Huckleberry Finn
Iczelion (OAV) as Iczel; Iczel Black; Iczel Gold; Iczel Silver
Inakappe Taisho (TV) as Kaze Daizaemon
Kagaku Ninja-Tai Gatchaman F (TV)
Kaibutsu-kun (TV 2) as Kaibutsu-kun
Kamen No Ninja Akakage (TV) as Aokage
Kindaichi Shounen no Jikenbo (TV) as Tomoyo Gonda
King of Bandit Jing (TV) as Mama stout
Konchu Monogatari Minashigo Hutch (TV) as Bunkichi
La Seine no Hoshi (TV) as Danton
Love Hina (TV) as Hina Urashima
Love Hina X'mas Special - Silent Eve as Hina Urashima
Mahou Tsukai Sally (TV) as triplets
Majokko Megu-chan (TV) as Saturn
Maya the Bee (TV) as Willy
Microid S (TV) as Manabu
Mirumo de Pon! (TV) as Kinta
Monster Rancher (TV) as Rosetta
Ojarumaru (TV) as Semira
One Piece (TV) as Doctor Kureha
Panda no Daiboken (movie) as Jumbo
Parappa the Rapper (TV) as Sister Corn (Eps. 1, 17)
Pikachu Exploration Party (movie) as Elekid
Pinocchio Yori Piccolino no Boken (TV) as Piccolino
Pretty Cure (TV) as Yukishiro Sanae
Rascal the Raccoon (TV) as Rascal
Requiem from the Darkness (TV) as White Hermit/Black Hermit
Shin Mitsubachi Maaya no Boken (TV) as Willey
Sora Tobu Yureisen (movie) as Hayato
Soreike! Anpanman (TV) as Shichuu-obasan
The Green Cat (OAV) as Green
The Mysterious Cities of Gold (TV) as Esteban
Three Little Ghosts (TV) as Obaa-san
Tiger Mask (TV) as Takeshi
Tsurikichi Sanpei (TV) as Sanpei
Uchuu Patrol Hopper (TV) as Pu
Urusei Yatsura (TV) as Kintarou
Voltron (TV) as Hiroshi Suzuishi; Takashi Shirogane; Honerva

-Taken from here

Stephanie Nadolny:

God, out of every single voice actor/actress from Funimation, I dislike her voice the most. It's just...so...annoying. Sometimes it sounds like she's screeching when she's doing Gohan-chan's voice, and it's really annoying. o_o;; Not only that, but when she cries while doing Gohan, it somehow makes me want to hit my head on a wall. It's just that annoying. Not only that, but I somehow get this idea that she has this opinion that she's better than every other voice actor. I'm still waiting for a good excuse for as to why she didn't show up at the 16th Project: A-Kon. It's in Dallas and SHE LIVES IN DALLAS! I know that she might have been busy, but couldn't she have at least showed up for autographs...? -_-;; She's only done Gokuh and Gohan as children.

Kyle Hebert:

Differing greatly from my opinion of Nadolny, I like this guy. He's probably my favorite voice actor from Funimation. I think he did a good job as Gohan, too. He makes Gohan sound smexy. XD Not only that, but he seems like a guy who really does care about his fans. He let me skip through the whole line at A-Kon to get his autograph after learning that I was depressed because my grandma has passed away that day. Not only that, but I didn't have to buy one of the little things that they had out for him to sign. He actually signed my DBZ shirt. ^_^;; Here's a list of characters he's done:

Blue Gender as Seno Miyagi
Blue Gender as Sgt. Robert Bradley
Blue Gender as Takashi
Case Closed as Jim Flemming
Case Closed as Dr. Sadler
Case Closed as Gerard Dufour, Bigglesworth
Case Closed as Bruno
Dragonball as General White
Dragonball as Nat
Dragonball as Bizu
Dragonball Z as Teen Gohan
Dragonball Z as Narrator
Dragonball Z as Pikkon
Dragonball Z as West Kai
Dragonball Z as Ox King
Fruits Basket as Takei
Fullmetal Alchemist as State Warrant Officer Vato Falman
Lupin the 3rd as General Headhunter
Lupin the 3rd as Butrakari
Lupin the 3rd as Goering
Yu Yu Hakusho as Karasu
Yu Yu Hakusho as Okubo
Yu Yu Hakusho as M2

- Taken from his website