Plot: While lost and trying order a pizza, the gang meets two twin inventors working on a secret project that could "change mankind".
Cast
Casey KasemShaggy Rogers (voice)Casey Kasem was 52 in The New Scooby Doo Mysteries - Season 1 - The Hand of Horror (Episode 4).
Birthday: Wed, Apr 27 1932
Sun, Jun 15 2014
Sun, Jun 15 2014
Heather NorthDaphne Blake (voice)Heather North was 33 in The New Scooby Doo Mysteries - Season 1 - The Hand of Horror (Episode 4).
Birthday: Wed, Dec 13 1950
Wed, Nov 29 2017
Wed, Nov 29 2017
Don MessickScooby-Doo / Scrappy-Doo (voice)Don Messick was 58 in The New Scooby Doo Mysteries - Season 1 - The Hand of Horror (Episode 4).
Birthday: Tue, Sep 07 1926
Fri, Oct 24 1997
Fri, Oct 24 1997
Frank WelkerFred Jones (voice)Frank Welker was 38 in The New Scooby Doo Mysteries - Season 1 - The Hand of Horror (Episode 4).
Birthday: Tue, Mar 12 1946
Marla FrumkinVelma Dinkley (voice)Marla Frumkin was >> in The New Scooby Doo Mysteries - Season 1 - The Hand of Horror (Episode 4).
Birthday: Unknown Birthday