Dominic

Dominic is a friend and cloud cousin of Scott Wozniak, Joe Robertson, and a third unnamed person, he appears in the Originals episode FIRST TIME VAPE SHOP VISIT! - VLOG. He is played by Dominic Mattero.

Personality
Dominic appears as a cautious individual as he's the only one out of the 4 cloud cousins who doesn't want to vape (with the reason being that he doesn't want skin cancer), he is also somewhat of a photo bomber as he's shown to face to the camera when Scott Wozniak is talking, for an example making gestures towards the camera, like thumbs up.

In FIRST TIME VAPE SHOP VISIT! - VLOG
Dominic appears in the video as one out of the 4 people in FIRST TIME VAPE SHOP VISIT! - VLOG who's going vaping, however, Dominic is the only one in the four who doesn't want to vape, this resulting in Scott Wozniak kidnapping him and (likely) forcing him to vape.

Trivia

 * His name is presumably a reference to his actor, Dominic Mattero.
 * His full character name could be Dominic Mattero as Joe Robertson, another character in FIRST TIME VAPE SHOP VISIT! - VLOG, has his name be the full name of his actor.