Robert Axelrod, the veteran character actor best known for voicing Lord Zedd and Finster in the long-running kids TV show Mighty Morphin Power Rangers, died Saturday at age 70, his agent has announced on Twitter.

In addition to the villain Lord Zedd and the monster maker Finster in the original M.M.P.R series (and 1995 movie), Axelrod also voiced many characters like Armadillomon and Wizardmon in the Digimon anime series.