Sophie Aldred: (On the thought of reprising the role of Ace for the new series of Doctor Who) I'd love it, it would be so exciting.
I'd love to have another go at some point, but I can see it was totally right that Lis went back to do her bit and I'm so delighted for her that she's going on to do the Sarah Jane Adventures.
I think it so fantastic for children to have an older female role model – where else can you find that. An exciting, adventurous older woman on children's telly, it's so brilliant.
I thought the episode that she did [School Reunion], the story summed it up for all the assistants.