John Lovelady hat 1 Serie und 1 Film gedreht. Unter anderem spielte er Announcer / Rat (voice) / Bruce Fox / Rat (voice) / Cowboy / Frogs (voice) / Easter Bernie (voice) / Frogs / Monsters / Announcer (voice) / Ghost / Harry (voice) / Gloat / Iggy Wiggy (voice) / House / Danceros / Headless Dancer (voice) / Nigel / Barber (voice) / Nigel / Pig Dancers (voice) / Rats / Scoff / House (voice) / Two-Headed Whatnot (voice) in der Serie Die Muppet Show.Im Kino in der Rolle des Additional Muppets im Spielfilm The Muppet Musicians of Bremen.