Isaac Santiago
The Sims 3 Generations Logo
Gender Male Male
Age TS3-Young-Adult Young Adult
Age (Start) TS3-Baby Baby
Age (End) TS3-Young-Adult Young Adult
Life state CAS Human icon Human
Education and Employment
Major Business Business
Parents Penelope Santiago
Zane Santiago
Sibling(s) Kendra Santiago

Lindy Santiago
Twin Sister

Aiden Santiago

Tanner Santiago
Romances Nora Lamar

Ashley Desorrento
Marital status Dating
Pets Tinkerbell Santiago

Peterpan Santiago

Tigerlily Santiago
Trait Brave small Brave
Trait Loves the Heat small Loves the Heat
Trait Clumsy small Clumsy
Trait Ambitious small Ambitious
Trait Genius small Genius
Zodiac sign LibraLN Libra
Lifetime wish
LTW The Emperor of Evil The Emperor of Evil
Fav Disco Disco
Fav Crepes Crepes
Fav Lilac Lilac
Hair color Haircolor5-TS3 Black
Eye color Eye-blue Blue
Skin color Light skin-TS3 Light
Body shape Thin Thin
Other Information
Game TS3G Icon The Sims 3 Generations LP Series
Neighborhood Lucky Palms

Isaac Santiago is the second child of Penelope and Zane Santiago, as well as the second grandchild of the late Justine and Joseph Fenderson, and Julian Santiago. He is the older twin of Lindy, the younger brother of Kendra and the older brother of Aiden and Tanner. He is also the Uncle of Jamie Tanner.


Isaac is an ex-college student. Like his sister Kendra, he is a Nerd, but has a higher interest in comic books than gaming.

Season 2

Isaac was born to Penelope and Zane Santiago in Part 5, before his twin sister Lindy, and got the Clumsy and Loves the Heat traits, as well as the Nerd hidden trait. Isaac aged up into a Toddler in Part 7, before Lindy. He aged up into a child on his own in Part 13, once again, before Lindy. Due to his modest early development he gained the Brave trait. As a Toddler, Isaac did not have a good relationship with his dad, which they try to fix once he ages up.

Isaac aged up into a Teen between Parts 17 and 18 and gained the Ambitious trait. He is seen spending more time with Zane. Lifesimmer said she wanted Isaac to be a bookworm and a comic book geek; like Lindy, he appears disinterested in dating. In Part 20 Kendra signed him up for the newspaper club. Isaac attended the dance without a date in Part 21 where was voted prom king and started hitting it off with a girl named Nora Lamar, although he was twice rejected by his existing crush. He also got in a fight with a nerdy classmate. Lifesimmer stated that she would consider making Isaac gay, despite him being romantically involved with a girl, meaning that Isaac could be bisexual.

Isaac and Lindy went to college together as Young Adults, where Isaac seemed more interested in anything other than his studies. In Part 41 Issac seemed to take a liking to Lindy's friend, Ashley, which is made evident when he stares at her bikini-clad chest. Ashley, on the other hand, appears not to be interested in him.

Isaac went on to attend the Lucky Palms Community College where he studied Business for the Criminal Career.

Season 3

Isaac appears alongside his parents and siblings, sans Kendra. He has left community college due to the mod becoming obsolete and is currently pursuing his career.


  • Isaac went through a bald phase in which he would often sport a toupee.
  • Isaac shares his favorite color with his twin sister.
The Fenderson-Santiago Family
By appearance:
Justine Fenderson (nee Smith) - Joseph Fenderson - Luna Fenderson - Penelope Santiago (nee Fenderson) - Jai Fenderson - Tori Fenderson (nee Dunbar) - Ava Fenderson - Zane Santiago - Julian Santiago - Kendra Tanner (nee Santiago) - Isaac Santiago - Lindy Santiago - Karie Dunbar - Aiden Santiago - Davina Dunbar - Tanner Santiago

Family tree:
Fenderson Family Tree