Doctor Kate (ドクターケイト Dokutā Keito?, 27, 29 30) is a plumed cockscomb monster that shoots poisonous liquid and turns human into rose. Her poison gas called Kate Gas which able causes the target body become numb. Her poison gas feared by other staff officers. Her weakness is fire. She is destroyed by the poisoned Tackle's Ultra Cyclone.
Kamen Rider Decade: World of Stronger
Doctor Kate appeared in World of Stronger fighting against Kamen Rider Decade, but is defeated.