|“||Well, yes and no. The real struggle is always art versus commerce.||”|
|— Myles to Fred Andrews[src]|
It is currently unknown whether or not Myles grew up in Riverdale, but he at least spent a great deal of time there, having married and had a child with Sierra McCoy, a daughter who they named Josephine, after the French singer, Josephine Baker.
For a long time, Myles struggled with a drug addiction.
In the days leading up to the event, he joined Josie, and his wife, Sierra for dinner with Fred Andrews, his son Archie Andrews, and the host of that evening's dinner, Hermione Lodge. With him being a professional jazz player, Fred asked if he was living his dream, to which Myles replied, yes and no, the real struggle is always art vs commerce. He was disappointed to learn that Valerie Brown quit the Pussycats, she was the real deal, giving the group some much needed integrity. It's more than just about having fun, which is what he explained to Fred, then addressing Josie by her first name, that being Josephine, she was named after Josephine Baker, and to no surprise of his own, Archie had no idea who that was. After dinner, they sat in on Fred's proposal for the vacant land, a proposal that led Myles to believe Fred was just another "dollar chasing gentrifier".
The night of the Variety Show had arrived, he and Sierra sat in the audience as the Pussycats performed their song, Myles was undoubtedly unimpressed, so much so that he left the event before the Pussycats even finished their performance.
Myles is a tall, middle-aged man with a lean, but athletic build. He has a dark brown skin, a shaved head, dark brown eyes with a greying, trimmed beard. He's also a well dressed man, who happens to be quite fond of fedoras.
Myles is a direct and intolerant man. He speaks what's on his mind without the fear of consequences, telling Fred Andrews that he was just another dollar chasing gentrifier. Despite being a man of music, even naming his daughter after the late singer and entertainer, Josephine Baker, Myles has no love for Josie and the Pussycats, or their style of music, which he refers to as Pop music. However, he is admittedly quite impressed with Valerie Brown, and the talent she brought to the group. Beyond, that he sees Josie pursuit as a pointless waste of time, demonstrated when he walked out of her performance during the Variety Show.
The father-daughter relationship between Myles and Josie McCoy is rather complicated. The two of them are not very close due to the fact that Myles is often on the road. Furthermore, he is quite hard on Josie and puts a lot of pressure on her regarding her music choices and career. Because of this, Josie tries even harder to please him, but it appears that Myles continues to be un-impressed by her efforts, proven when he left the 75th annual Variety Show during her performance with her band Josie and the Pussycats, which while on the subject, he views as child's play and Pop music. With the exception of Valerie Brown, who he believes is the real deal, as she provided the group with some much needed integrity.
At Some point, Sierra and Myles met, presumably in Riverdale, later getting married and having a daughter together, Josie. Due to Myles's career as a professional jazz player, he is often absent, causing the relationship between him and Sierra is be quite distant and strained. It also appears that they often have disagreements with each other, as Myles is quite strict on their daughter Josie when it comes to her band, Josie and the Pussycats, looking at it as nothing more than child's play, where as Sierra is more calm with Josie, and proud of what she's accomplished, pushing Josie to achieve her goals.