From Dragon Ball Encyclopedia, the ''Dragon Ball'' wiki
Mack is one of Maron's countless boyfriends.
Mack is muscular and has blue hair. He is seen wearing an orange top and black shorts when he arrives on Turtle Island.
Dragon Ball Z
Mack appeared in "Last Ditch Effort". He showed up on Turtle Island while Maron was watching a sad love story. When the movie ended, Mack arrived on Turtle Island and was followed by Tommie. They were then followed by many of Maron's other boyfriends. Turtle Hermit asked her who all of the men were and Maron replied, "I was bored so I called up a few boyfriends". Maron then ran inside Kame House, grabbed her bags, and hopped into the boat with Tommie.
She and all of her boyfriends were not seen again in the series.