The only physical cast members are John Schwab and Sandra Dickson, who play the Voice Trumpets, Penelope Keith, who plays the Bear with Brown, Fuzzy Hair, Eric Sykes, who plays the Scary Lion with Big, Scary Teeth and Jess Smith who plays the Baby Sun, who is believed to have been around seven months old at the time of filming. Her giggle was included in the single "Teletubbies Say Eh-Oh!". Although not credited, this makes her technically the youngest person ever whose vocal appeared on a number one song.