One of the things that fascinated Franklin about Chopper was the complexity of his personality and his ability to go from quite charming and friendly to extremely violent and aggressive in a matter of seconds.
"He's also the kind of character who can get away with anything," he said.
While this was a useful trait to have when Franklin steps into Chopper's shoes on stage, when he did stand- up acts as himself, it sometimes proved problematic.
"I think there's a lot of jokes I can crack when I'm Chopper, that I can't do when I'm myself.
"When I'm Chopper, they [the audience] can blame him."
Franklin said his stand-up shows were entirely different from his Chopper performances and often provided him with an outlet to discuss his everyday life and being a father.
Franklin encourages people to go to his show, titled Repeat Offender, next month. He is also promoting the release of his new live DVD, The Sh*Tlist, which was recorded at the 2013 NZ International Comedy Festival.
The 7.30pm show is restricted to people over the age of 15. Tickets: www.ticketmaster.co.nz.