The 32-year-old actress - who currently plays Tanya Branning in EastEnders - will feature in Candy Cabs, a three-part show produced by Splash Media.
Joyner will join Lisa Millett in the lead, supported by Paul Nicholls, Denis Lawson and Ricky Whittle among others.
"We're delighted to be on board with the girls from Candy Cabs. The series has a wonderful cast, warm and witty writing and a sparkling seaside setting brimming with northern soul," comedy commissioning editor Cheryl Taylor said. "We look forward to three nights of emotional and dramatic fun with these lovely ladies."
"Our girls are mad, bad and addicted to lip gloss. Candy Cabs is about friendships, fun and finding yourself," added writers Johanne McAndrew and Elliot Hope, whose credits include Holby City and Footballers' Wives.