|Full Name||Billy Biggle|
|First Appearance (Barney and the Rocko Squad)||Barney's Big Blast|
|Barney and the Rocko Squad Portrayer|| Marilyn Rising (standard)|
Kaiji Tang (classic clips)
- "Gosh, it's the best party I'VE EVER BEEN TO- I mean, IT'S THE BEST PARTY I'VE EVER HEARD OF!"
- — Billy Biggle imitating Lee Chaolan's voice in the fifth clip of Barney's Best Moments.
Billy Biggle is Ruby Biggle's seven-year-old brother. He is a close friend to the Rocko Squad.
Billy is voiced by Marilyn Rising in Barney and the Rocko Squad, but the classic Kidsongs clips have him voiced by Kaiji Tang, who also voices Lee Chaolan in the same series.