Joseph Costello

YouTube Star

Birthday December 11, 1995

Birth Sign Sagittarius

Birthplace Austin, TX

Age 27 years old

#67088 Most Popular


Self-made entrepreneur who is well known for his comedic videos, which he uploads to his popular YouTube channel QuietAssassins.

Before Fame

He created his QuietAssassins YouTube channel in May of 2008.


He founded the lifestyle street wear clothing line GODLY. His YouTube channel has more than 700,000 subscribers.

Family Life

He was born in Austin, Texas. He has a brother named Marcel and a bulldog named Sadie. He has posted photos with his girlfriend on Instagram.

Associated With

He uploads a lot of prank videos to his channel, like Ed Bassmaster.


Joseph Costello Highlights
Joseph Costello Highlights