Alessandro "Alex" Giovanni Venturella is a British musician who is the current bassist for American heavy metal band Slipknot.

Earlier in his career, he was the touring guitar tech for Mastodon's Brent Hinds, Coheed and Cambria, Architects, and Fightstar.

Venturella's unique left-hand tattoo had been reported by Metal Chapel News, despite all the musicians wearing masks in the video.

[3] On 2 August 2015, Venturella had an unknown medical emergency for which he was rushed to the hospital during a show in Hartford, Connecticut.

[4] The following day, it was revealed that Venturella had suffered from dehydration during the show the previous night, and would be returning to the stage on 4 August 2015, in Mansfield, Massachusetts, where he performed backstage.