Porter, who is the current favourite to win this year's Dancing on Ice, will partner Matt Evers on the UK jaunt.
© Ken McKay/Rex Features
Former Brookside star Ellison will also be taking part in the shows alongside her pro skater Daniel Whiston.
Torvill & Dean are choreographing the live tour and will also perform at the arena shows, which kick off in Newcastle on Friday, April 13.
© Ken McKay/Rex Features
Other celebs performing at the shows include last year's champion Sam Attwater, X Factor's Chico, soap star Matthew Wolfenden, Corrie's Andy Whyment and Sugababes singer Heidi Range.
The three-and-a-half-week tour will visit London, Manchester, Nottingham, Sheffield, Birmingham, Liverpool and Glasgow.
> 'Dancing on Ice': Matthew Wolfenden, Andy Whyment added to tour
> Chico, Heidi Range, Sam Attwater for 'Dancing on Ice' 2012
