His mother Stella is Danny's sister who raised him alone. His father is out of the picture.
In Kapu, Danny brought Eric over to a crime scene to straighten him out, but it doesn't work. He then revealed that Eric was caught in a stolen car but Danny saw to it that the charges were dropped. Following this, his mother sent him to Danny in the hope that he could straighten out his nephew. Later at the Five-0 headquarters, he plays with the computer a bit before being sent to Danny's office, where he sends an old New Jersey calendar photo of Danny to everyone in his address book.
In Ua 'o'oloku ke anu i na mauna, Danny was forced to wake up early so that he could take Eric over to the crime lab on his first day, complaining that he should get his own apartment.
In Ka hale ho'okauweli, Eric is called to a haunted house where he tells McGarrett and Grover the time he was dressed up as a Pink Power Ranger, got lost from his friends, and ended up wetting himself when Danny and some friends ambushed him in the park. Later, while processing the house, Eric realises that the house wasn’t haunted, so he and Danny prank the others with the stuff in the house when they came back.
In Elua la ma Nowemapa, when the FBI started taking evidence from Five-O's case of a murdered conspiracy theorist, Eric calls Danny to warn him.
In Ka Pa'ani Nui, Eric is called in to process a victim's bungalow, but comes in by horse, much to his annoyance, and complains about it to McGarrett, who amused him about his ass.
In Puka 'ana, Eric greets Kono politely, to her surprise, and he admits that Danny will have him fired if he flirted with her again. After giving her some results, Eric tries to offer some cookies that Sara Waincroft persuaded him to buy, but she declined, saying she already bought some from her, much to his annoyance.
- He was born when Danny was 18.
- Likes to be called E-Train, which Steve rarely calls him by.
- He watches Discovery Channel.
- In the episode Ka hale ho'okauweli he tells a story about Halloween 1995 mentioning he was 10 years old at the time, setting his birthday between November 1st, 1984 and October 31st, 1985, contradicting the trivia above.
|La O Na Makuahine||Kanalua||Lana I Ka Moana||Popilikia||Mohai||I Ka Wa Mamua||Ohuna||Wahine'inoloa||Ha'awe Make Loa||Huaka'I Kula||Kahu||Kapu|
|Olelo Ho'Opa'I Make||Hana I Wa 'Ia||Hookman||Kekoa||Pa'ani||Na Ki'i||Hoa Pili||Olelo Pa'a||Imi Loko Ka 'Uhanet||Ho'opio||He Welo 'oihana||Aloha, Malama Pono|
|Mai ho`oni i ka wai lana mâlie||Lehu a Lehu||Ua 'o'oloku ke anu i na mauna||Ka Papahana Holo Pono||Ka 'alapahi nui||Na Pilikua Nui||Na Kama Hele||Piko Pau 'iole||Hana Keaka||Ka Makau kaa kaua||Kulean||Ua Ola Loko I Ke Aloha||Umia Ka Hanu|
|Hoa 'Inea||Ke Koa Lokomaika'i||Ka Pohaku Kihi Pa'a||Waiwai||Kanaka Hahai||Malama Ka Po'e||Ka Haunaele||Ka Pono Ku'oko'a||I'ike Ke Ao||Pilina Koko||Pa'a Ka 'Ipuka I Ka 'Upena Nananana||O Ke Ali'I Wale No Ka'u Makemake|
|Makaukau 'ce e Pa'ani||No Ke Ali'i' Wahine A Me Ka Aina||He Moho Hou||Hu a'e ke ahi lanakila a Kamaile||Ke Ku 'Ana||Ka hale ho'okauweli||Ka makuahine a me ke keikikane||Hana Komo Pae||Elua la ma Nowemapa||Ka Luhi||Ka’ili aku||Ka 'Aelike||Ua ho'i ka 'ōpua I Awalua|
|Ka laina ma ke one||Ka Pa'ani Nui||Poniu I Ke Aloha||Hahai i nā pilikua nui||E mālama pono||Puka 'ana||Huikau nā makau a nā lawai'a||Ua malo'o ka wai||Waimaka 'ele'ele||Wehe 'ana||He ke’u na ka ‘alae a Hina||Ua mau ke ea o ka 'aina i ka pono|
|Fire Will Never Say that It Has Had Enough||Dog Days||Your Knife, My Back. My Gun, Your Head||No Matter How Much One Covers a Steaming Imu, The Smoke Will Rise||At Kama'oma'o, The Land of Activities||Unfolded by the Water are the Faces of the Flowers||The Royal Eyes Rest Above||The Trail Leads To A Diving Place; Do Not Follow After||Death at Sea||The Future is in the Past||A Tall Tree Stands Above the Others||The Round Up||What is Gone is Gone|
|The Children of Kalaihaohia||A Coral Reef Strengthens Out into Land||Only the Stars of Heaven Know Where Pae Is||The Fire Blazed Up, Then Only Ashes Were Left||To Do One's Duty||No One Has Ever Died For the Mistakes He Has Made; Only Because He Didn't Repent||Kind Is the Bird of Kaiona||The Answer to the Riddle is Seen||Though the Fish is Well Salted, the Maggots Crawl||What Parents Will Do, Children Will Do||The Tough Branch That Does Not Break in the Kona Gale||Ancients Exposed|
|Cocoon||The Man Who Fell from the Sky||When the Sea Draws Out the Tidal Wave, the Rocks Where the Cowries Hide Are Exposed||On the Slope of the Cliff, Not One Jutting Rock is Hidden from Sight||Nothing More the Eyes to Search For||Is Borne on the Back; Is Borne in the Arms||The Smoke Seen in the Dream Now Rises||Birds of a Feather...||Truth Comes from the Night||When the Light Goes Out, the House Is Dark||Gone on the Road from which There Is No Returning||A Bruise Inflicted on an Innocent Person Vanishes Quickly||Those Above are Descending|
|Depressed with the Heat of Kealwalua||Made Prisoner by the Reign of the Rain||When Covetousness is Conceived, Sin is Born||Offer Young Yaro Leaves to||He Who Eats 'Ape is Bound to Have His Mouth Itch||The Octopus of the Deep Spews It's Ink||Way of the Gun||Offspring of an Owl||The Teacher, the Pupil - Let it Come Forth||A Stranger Only for a Day||The Hand is at Fault||Endlessly Pours the Rain of Waianae|