By Liam Napier

A celebrity cast has been assembled for the six fight undercard of Joseph Parker's scrap with Francois Botha at Auckland's Trust Stadium next month.

Botha's son, Marcel, will make his professional boxing debut against Jeremy Sebastian, the brother of Australian singer Guy Sebastian.

Jordan Tuigamala, the son of former All Blacks wing Inga Tuigamala, will also make his debut against super middleweight James Uoka, though it is understood he may be forced to pull out after already agreeing to fight another opponent on June 28.

New Zealand women's champion Daniella Smith will also take on Sarah Howett for two world titles, the WIBA and WBF light welterweight titles over 10 two minute rounds. 

In what could be the best fight of the night, Sam Rapira takes on Viliami Taofi in the light heavyweight division.

And two radio DJs, Nickson Clark from Mai FM and Bryce Casey from The Rock, will square off in three, two minute rounds.

One further fight will be announced next week.