Suggestions by @peterj1994

Susie McKenna

as Brenda Balderdash in Grandpa in my Pocket (1998)

Score: +1

Jake Pratt

as Teddy in Grandpa in my Pocket (1998)

Score: +1

Leslie Ash

as Mrs Maridadi in Grandpa in my Pocket (1998)

Score: +2

Emma Watson

as Belinda Lucinda in Grandpa in my Pocket (1998)

Score: +1

Julian Clary

as Igor in Grandpa in my Pocket (1998)

Score: +1

Emma Watson

as Bernard Balderdash in Grandpa in my Pocket (1998)

Score: +1

Tina O'Brien

as Bubbles in Grandpa in my Pocket (1998)

Score: +1

Nina Wadia

as Miss Pointy-Pencil in Grandpa in my Pocket (1998)

Score: +2

Cat Deeley

as Princess Purpelovna in Grandpa in my Pocket (1998)

Score: +2

Lee Evans

as Rodger Splodger in Grandpa in my Pocket (1998)

Score: +1

James Forde

as Baby Boris in Grandpa in my Pocket (1998)

Score: +1

Dominic Wood

as Mr Krumpgrumble in Grandpa in my Pocket (1998)

Score: +1

Rupert Grint

as Max in Grandpa in my Pocket (1998)

Score: +3

William Stokes

as Floyd in Grandpa in my Pocket (1998)

Score: +2

Richard McCourt

as Shanay in Grandpa in my Pocket (1998)

Score: +1

Jade Jefferies

as Speedie Edie in Grandpa in my Pocket (1998)

Score: +2

Anne Kirkbride

as Lenora in Grandpa in my Pocket (1998)

Score: +1

Nigel Lambert

as Cousin Alvin in Grandpa in my Pocket (1998)

Score: +2

Peter Sallis

as Mr Hackit in Grandpa in my Pocket (1998)

Score: +1

Myles Anderson

as Hughie Harper in Grandpa in my Pocket (1998)

Score: +1