"Ohhh," replied Kimmel. "Welcome to our nation."
McIver, who plays an American on iZombie, has lived in the US for the past five years to pursue her acting career.
She also told Kimmel about her role as a three-year-old in the Oscar-winning movie The Piano, which was shot in New Zealand.
"What I remember ... was desperately needing to go to the toilet on that production. So I look back now and, that was one of my formative memories."
The pair then discussed McIver's current project, the genre-mashing iZombie.
"We call it a 'rom com zom dram,' because it's a romance, comedy, zombie drama," McIver explained.
"The guys on the set must have been so happy when they came up with [that]," joked Kimmel.
- nzherald.co.nz