Classic-era companion actors Carole Anne Ford and Frazer Hines will be joining Graham Norton on his BBC Radio 2 show on Saturday 6th April.
They will be talking about the Destiny of the Doctor CDs, and radio show producer Malcolm Prince told Doctor Who News that the actors will be the first of many Doctor Who-related guests on Norton's radio programme this year to mark Doctor Who's 50th anniversary.
Destiny of the Doctor is a year-long series of new audio dramas from BBC AudioGo being produced by Big Finish as part of the anniversary celebrations. Each Doctor will have his own story in the run-up to the anniversary itself in November.
In the AudioGo dramas, Hines, who played Jamie McCrimmon alongside the Second Doctor, stars in Shadow of Death, which was released last month, while Ford, who portrayed the Doctor's granddaughter Susan, is in Hunters of Earth, released in January.
Questions to the duo can be submitted via firstname.lastname@example.org
The show runs from 10am to 1pm and they are scheduled to be on air at 11.30am, but please note that running orders are subject to change.
It should be available to listen to worldwide via the BBC iPlayer. A clip of the interview will be posted on the radio show's site afterwards, along with the weekly podcast.