He was a mad scientist wolf, he appeared in the more later series in the 1990s as a recurring villain as less frequently than Baron Greenback (in four episodes in total).
In one episode, he attempted to undermine Danger Mouse by metamorphosing into a Shirley Temple lookalike. In only one episode, "Penfold Transformed", as opposed to his stage name "Augustus P. Crumhorn III", he lists his full name as, "Aloisius Julian Philibert Elphinstone Eugene Dionysis Barry Manilow Crumhorn", omitting both Augustus and the III.
He has a terrible temper and always yells "Curses" whenever thing go wrong for him.
Crumhorn was rarely if ever seen among American audiences, who had to purchase the original version aired on ITV to experience his ridiculousness. Crumhorn and Greenback were at odds; once Crumhorn kidnapped Penfold and Penfold managed to escape simply because the two villains were too busy quarreling to notice his absence.
| Danger Mouse | Count Duckula
Characters: Danger Mouse | Ernest Penfold | Colonel K | Baron Silas Greenback | Nero | Stiletto Mafiosa | Leatherhead | Count Duckula | Doctor Augustus P. Crumhorn III | Penfold's Aunt | Professor Heinrich Von Squarkencluck | Agent 57 | Buggles Pidgeon | B.L.E.E.P | Texas Jack McGraw McGraw | JJ. Quark | Grovel | El Loco | Obadiah | Doctor Frankenstoat | Fangboner | Mac the Fork | Dudley Poyson | Copper-Conk Cassidy | P.A.W.S.| Hannibal Hoggartey | Wulfgang Bach | Mad Manuel | Eddy Murphee
Locations: Pillar Box