Spy understands Henderson will be back in Auckland to film My Life Is Murder with Lawless in April.
Also back this season with Lawless are Alexa's trusty Australian sidekick Madison, played by Ebony Vagulans, Rawiri Jobe as Detective Harry and Joe Naufahu as cafe owner Reuben.
Guest stars include Step Dave's Jono Kenyon and A Place to Call Home's Craig Hall, whose former onscreen wife in Match Fit, Miriama McDowell, will also appear in the series. Hall's real-life wife Sara Wiseman guest-starred on the show last year.
Jobe tells Spy he is stoked to be back.
"We're a week into production and, even though Covid brings its challenges, I feel very lucky to be doing what I love, with an awesome bunch of people in some seriously cool locations around Tāmaki Makaurau. I can't wait for our audience to see what we get up to this season, it's going to be fun."
With New Zealand borders now open for business and Lawless' friend William Shatner zooming in for an episode last year, Spy's eyes are open around town for which high profile/international guests we might see on the show.