Greg

Greg Summers (portrayed by Reuben Cheow, voiced by Gavin Yap) is Anna's ex-boyfriend, and a supporting character in Simulacra attempting to locate Anna with the assistance of the player.(he also was mentioned in Simulacra:pipe dreams as an Easter egg in an email in ccb.news.web)

Biography
Prior to the events of the game, Greg and Anna had been together in a relationship for two years. The relationship was unhealthy, and ended after Greg cheated on Anna with a girl named Yolanda, who works for a company called Faris and Kane, a company that allows people to call them and have their shopping items delivered to them. After finding a photo of an inconclusive pregnancy test in his phone, Anna breaks up with Greg, which leaves him disappointed and angry at the events. At the behest of her best friend Ashley, she sets up a profile on Spark, a dating app. During this time Greg has called and messaged Anna but Anna intentionally does not respond to any of them. After talking with several incompatible matches, she eventually matches with a man named James Aulner, who, unbeknownst to her, is a shell of his former self being controlled and mimicked by a mysterious entity. Their interactions eventually set up the events of the main story.

After The Player receives Anna's phone, Greg, who still attempts to reconnect with Anna by still calling and messaging her is currently unaware about Anna's disappearance He mistakes the player for Anna, then believes them to be Anna's new partner. After discovering that The Player has no association with her, he decides to assist them (and later Taylor Perrera, one of Anna's Spark matches) in finding her, though is only helpful to an extent. He goes to great lengths to find clues that would potentially narrow down her location: breaking into her home and using her devices (which temporarily wipes her phone and deletes its data), and walking straight into her workplace to find any leads on her whereabouts on her computer (though is quickly prevented from approaching the desk and promptly thrown out). These actions land him under legal trouble, and The Player has the choice of either saving Greg or having him arrested. The arising issues eventually lead to Greg abandoning the search for Anna.

Personality
Greg is controlling, aggressive, impatient and can come off as rude. During his relationship with Anna, he is verbally abusive towards and often forgets basic information about her and is immature about his infidelity. He also starts to go crazy when he finds out that Anna matched with Taylor on Spark (and as a result is less than friendly with him when they eventually speak to each other). Greg does not get along well with The Player, often times rushing to find answers, making rude remarks and berating them for not responding to his calls, but only decides to cooperate with them as they are his only real means to finding his ex-girlfriend.

Throughout the story, Greg, while seemingly uncaring, is evidently concerned for Anna. However, once he faces legal pressure, he quickly and selfishly abandons the mission and leaves it to The Player and Taylor to find Anna themselves, showing a limit to his care.