Sandra Sanchez is the ex-wife of Richard, otherwise known as Pigeon. A maid of Cormac McCarthy reminds Pigeon of Sandra, leading to him drinking heavily and accidentally destroying the Pulizer Prize medal of McCarthy's. Sandra is voiced by Adriane Price.
Sandra Sanchez makes her official debut in the episode Ogopogo! Sandra wanted to sell their old house but needed Richard's signature in order to make it official. Pigeon initially refused due to his resentment of her turning him into a pigeon and denouncing God for allowing her to do so. When the rest of the Mike Tyson mystery team meet Sandra, it was revealed that because of Richard's antics, she prayed to God to show her the real Richard. As a result, he was changed into a Pigeon. Pigeon ultimately comes around and joins the team at his old residence and goes upstairs to confront Sandra and they end up having sex. The next morning, Pigeon says he plans to leave the team and stay with Sandra. Before anything can become official, Sandra prays to God about Pigeon although the latter still dismisses it. She asks God to turn her into a pigeon too, much to Pigeon's annoyance because he wanted to be human again. Sandra is then eaten by Ogopogo, the lake monster. With Sandra dead, Pigeon will most likely stay a pigeon forever.
Sandra is depicted as being an attractive Hispanic/Latino woman with long dark-brown hair, dark skin, and a thin body.
In her debut, Sandra appeared to be a kind woman, modestly accepting Mike's gift and politely conversing with the mystery team while offering them refreshments. Sandra confesses she initially loved Pigeon, but became heartbroken when discovering about his unfaithfulness as a partner. Despite her sensitivity on the subject, Sandra attempted to reunite with Pigeon prior to her death, indicating a forgiving nature and showing she did truly love Pigeon. However, on a lesser note, Sandra appeared to be unintelligent, shown when she calls on god to transform her into a pigeon in an attempt to make her and Pigeon equal, despite Pigeon obviously eager to return human. Her foolishness ultimately results in her death.