Clogg is a Trokel who appears in the episode "Prince Smurf".
Clogg appears at the start of the episode, collecting feathers. When one accidentally falls down a cliff, Gertha offers to get it for him but falls and grabs onto a branch. Clogg tries to help her but is too afraid so calls for help instead. Hefty, who is being chased by a rock falls down the cliff alongside Gertha. He helps Gertha onto the cliff. Gertha's father appears and claims Hefty must marry Gertha, as it is a custom. Gertha says she wants to marry Clogg, but King Bandor says Clogg is too much of a coward.
Before the wedding, Clogg says he will try and stop the wedding, but he chickens out. Gertha leaves the alter and falls down another cliff. Hefty is too small to save her, so Clogg creates a pair of wings and swoops down to save Gertha. The King sees this act of bravery and allows Gertha to marry Clogg.