Simplify the following text for a Grade 11 native English-speaking person.
Original: The show also features the voices of Tim Whitnall , Toyah Willcox , and Eric Sykes , and occasionally Sandra Dickinson and Penelope Keith , all of whom provide narration .
Simplified: The show also features the voices of Toyah Willcox and Eric Sykes , and occasionally Sandra Dickinson and Penelope Keith , all of whom provide narration .