B.E.R. is a rock band who debuted in chapter three of the Night Begins to Shine four-part special. They are most known for their song, The Night Begins to Shine. William has long wavy red hair and a red beard and wears a car shop jumpsuit. When he gets transformed into the magical reality of The Night Begins to Shine however, still having his wavy red hair, he becomes more robotic appearing. His robotic parts are a light shade of pink. He wears blue pants with a belt buckle that has a "R" on
| Episode |
Teen Titans Go! The Night Begins To Shine - Chapter Five: You're The One |
2020 |
| Episode |
Teen Titans Go! The Day the Night Stopped Beginning to Shine and Became Dark Even Though It Was the Day - Chapter Three: Playing Hard to Get |
2017 |
| Episode |
Teen Titans Go! The Day the Night Stopped Beginning to Shine and Became Dark Even Though It Was the Day - Chapter Two: The Story in Your Eyes |
2017 |
| Episode |
Teen Titans Go! The Day the Night Stopped Beginning to Shine and Became Dark Even Though It Was the Day - Chapter Four: The Night Begins to Shine |
2017 |