A video of a person who appears to be a Mongrel Mob member verbally abusing Kiwi actor James Rolleston has been widely condemned.

The video, reportedly taken last year in Tauranga, begins with a person in a vehicle calling over Rolleston, who was walking along a waterfront area, and asking his name.

Rolleston, who is walking past, smiles at the people in the car, who then ask the Boy actor if he "wants a fight".

Rolleston shakes his head and says "nah". The person videoing then gets out of the car and says, "James Rolleston, pussy", and then gets back into the car.

The video flips around to then man clad in Mongrel Mob patches, who verbally abuses Rolleston, and yells, "Your movie was sh*t".

"We just stepped our boy."

The original video was posted live on Facebook, but the footage has spread after being posted by another person with the caption: "Not even funny or tuff(sic)."

Facebook users have been critical of the incident and highly supportive of Rolleston, with comments such as, "What an absolute disgrace to your chapter", "Uz should all come to the far north and do that weaksh*t catch ur self a Ngapuhi hongi real quick" and "Look how beautiful, honest and genuine of a smile [Rolleston] gave them piece of sh*ts".

A spokesperson for Rolleston told 1 NEWS "the incident shown in the video occurred in Tauranga in 2017".

"Though unpleasant, this was an isolated event and did not escalate any further than shown."

Rolleston was in recent Kiwi film The Breaker Upperers.