Flycatcher

Flycatcher, also known as the Frog Prince, or occasionally by Ambrose, his real name, is a fictional character in the comic book series Fables, created by Bill Willingham. Flycatcher was a happily married man in the Homelands, with many children. He lived peacefully with his family, his only quirk being the occasional resumption of his frog curse when he was nervous, scared or especially excited. Fortunately it only took a kiss from his loving wife to return him to human form, and, as time went on, he would often go for years between instances of the curse asserting itself. His tranquil family life was shattered when the Adversary invaded his realm. Fly geared up in order to fight, unaware that the enemy troops had already invaded his castle. As he bid farewell to his family, enemy soldiers burst into the room, causing Fly's curse to manifest immediately. Trapped in his frog form, he could only watch helplessly as his younger children were murdered immediately and his wife and eldest... full article at wikipedia