Anthony Field (the blue wiggle) is often seen barefoot, wearing only socks, or wearing Skeletoes (shoes with toes) due to back problems. A doctor recommended he try walking around barefoot and hasn't had a problem since.
Anthony Wiggle (Anthony Field) is the only wiggle to star in the original "The Wiggles" Tv series from 1998
Although not part of the new main cast, Greg wiggle from the original 1998 show appears in a Ready, Steady, Wiggle Christmas special.
Former Wiggle Murray Cook features in one segment as Murray The Cook.
Former wiggle Jeff appears in multiple episodes as "Jeff da Chef", especially when they're signing the song "Fruit Salad" in front of the small audience.