Ali Sparkes
2) Fly frenzy
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Mad scientist Petty Potts asks her neighbors, twins Josh and Danny, to help with her experiments and when her SWITCH spray turns them into flies, they are able to investigate the sabotage of their mother's garden.
4) Beetle blast
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On a trip to a pond with a local nature group, twins Josh and Danny accidentally eat a muffin laced with Petty Potts' SWITCH spray and are transformed into very stinky beetles.
6) Lizard loopy
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An intruder at mad scientist's Petty Potts' house interrupts her latest experiment, trying REPTOSWITCH on twins Josh and Danny, and when they return home they find a package that sends them on a mysterious quest.
10) Ant attack
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During an unwelcome visit, neighbor Tarquin unwittingly uses SWITCH spray to turn twins Josh and Danny into ants, then sets out with a magnifying glass to fry some bugs.
11) Chameleon chaos
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Twins Josh and Danny continue following clues leading them to marbles filled with scientific code, despite the fact that mad scientist Petty Potts' REPTOSWITCH formula is having some very strange side-effects.
12) Frog freakout
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Twins Danny and Josh are having a miserable time at camp when mad scientist Petty Potts arrives, armed with her new AMPHISWITCH formula, just in time to get another camper out of trouble.
13) Newt nemesis
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Appears on list
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At summer camp, twins Josh and Danny and their new friend, Charlie, still have frog's legs from when "camp counselor" Petty Potts sprayed them with her new AMPHISWITCH, but a second attempt to restore them turns them into newts, instead.
14) Spider stampede
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While seeking their lost dog, Piddle, twins Josh and Danny encounter their next-door neighbor, Petty Potts, a mad scientist whose SWITCH spray accidentally turns them into spiders.