|Family & Friends|
|Family:||Arthur Griffin (Father),unnamed Mother (Mother),|
|Friends:|| Carlos Garcia|
|First appearance:||Big Time Demos|
|Last appearance:||Big Time Party|
|Portrayed By:||Carlie Casey|
Mercedes Griffin (Carlie Casey) is the daughter of Arthur Griffin. She appears in Big Time Demos where she pretends to be the "secret someone who picks the demos". She eventually dates all the boys apart from James because she never dates people who are "prettier" than her. She makes her second and last appearance on the show in Big Time Party where she is on a date with Logan. Mercedes finds out that Logan is dating her and Camille at the same time and breaks up with him. She then starts to date Guitar Dude. She seems to be nicer in this episode after Kendall gives her a speech.
In Big Time Demos Mercedes arrives in Rocque Records with her dog. While she was on the phone with someone she criticized the studio and Gustavo's office. Gustavo suddenly wants to unleash his wrath on her just the moment before Mercedes introduces herself. After taking BTR's CD demo Mercedes wants to leave soon just before she sees Kendall James Carlos and Logan. Saying that their all cute Carlos asks her if she is the one who will pick up the demos which Mercedes responding to him clear. She then starts pointing out all of BTR members with her finger before stopping at Kendall and claims him as her new boyfriend. Mercedes then dragged him into the Palm Woods with Kendall asking for help. Logan and Carlos felt sorry for him and James was upset about the fact that Mercedes chose Kendall over him.
- She never dates anyone prettier then her as she said in Big Time Demos.
- It can be assumed that she's an only child based on the way her father spoils her.
- She's known to lie a lot.
- She knows a lot about marketing and promoting as she showed when telling her dad about facts of why Big Time Rush would be a better choice then Vampirah.
| Big Time Rush Wiki has|
related to Mercedes Griffin.
|"Finish your rapping!"|
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