Alfred is a character from the Thunderbirds episode The Perils Of Penelope. He was an attendant on board the monotrain that took Lady Penelope Creighton-Ward to Anderbad.
- He is twice referred to by name in the episode, and both times he is called Alfred. However, he is referred to as "Albert" in several reference books.
- This is the same puppet that played Colonel Harris in the episode Sun Probe, only with an added moustache.