|Age:||About 22 (series 3 & 4)|
|Relationships:||Dan Cahill (friend)
Darsh Mourad (father)
James Chen (godfather)
Tiffany Chen (godmother)
Nellie Gomez (girlfriend)
|First Appears In:||Trust No One (mentioned)|
|Last Appears In:||Mission Hindenburg|
Sammy makes his first physical appearance at Columbia University. He explains how he tempered with the serum to make it less toxic. He says that a man claiming to be Fiske Cahill had visited him during October to ask him about the serum. Sammy gives "Fiske" the serum recipe to be put in Madrigal archives, however "Fiske" was actually J. Rutherford Pierce in disguise. It soon dawns on him that he had make a huge mistake with the whole serum experiment.
He is later proven to be taken hostage by Founders Media.
Sammy first appears with Nellie in Mexico, looking for Fiske Cahill. They videoconference Aunt Beatrice, then Sammy and Nellie catch a flight to Singapore, for they discovered that the Outcast has been recruiting from there until recently. He is also worried, for his parents have not contacted him. Sammy and Nellie stay with his godparents, the Chens. Soon, they go meet Sinead Starling, who is calling herself Bee Arnold. On their return, Aleksandr Spasky attacks them with his steel spear. When they arrive back to the Chen's house, Mabel, the daughter tells them that her parents might be in league with the Outcast. At 3 A.M., Sammy and Nellie go into the Chen's computer and find out that the emails were forwarded from Patricia Oh. They hear footsteps, so they go into the next room. Nellie sent a text message that said "If we disappear ask Mabel".
Sammy and Nellie head to Russia on Amy's orders. They break into the Lucian stronghold in the Kremlin, where they search for KGB connections to Lucians and the Outcast. After finding a file on Nathaniel Hartford, Alek Spasky attempts to kill them with an acid bomb. Nellie and Sammy escape, but the stronghold is destroyed. They then go to Lefortovo, where Vladimir Spasky, Irina and Alek's old father, is being held in the prison hospital. Vladimir Spasky tells them a story about Nathaniel Hartford, but it isn't clear what is said. The book ends with Nellie telling the others, 'Your grandfather is alive. And he's got a very good reason to get revenge.'