Cast & creator
Thea White
Best known for Courage the Cowardly Dog, Straight Outta Nowhere: Scooby-Doo! Meets Courage the Cowardly Dog, Cartoon Network Christmas: Yuletide Follies
Thea Ruth White (née Zitzner; June 16, 1940) was an American voice actress best known for her voice over work as Muriel Bagge on Courage the Cowardly Dog. Her brother - John Zitzner - revealed she died of cancer on July 31st, 2021 after surgery.
Also known as: Thea Ruth Zitzner
7
film credits
1
television credits
8
1999–2025 · acting roles
7.8
average across scored titles
Signature credits
Known for
★ 8.2Courage the Cowardly Dog
Muriel Bagge (voice) · 1999
★ 5.8Straight Outta Nowhere: Scooby-Doo! Meets Courage the Cowardly Dog
Muriel Bagge / Rich Old Lady (voice) · 2025
★ 9.9Cartoon Network Christmas: Yuletide Follies
Muriel Bagge · 2004
★ 9.9Cartoon Network Christmas: Yuletide Follies
Muriel Bagge (Voice) · 2004
★ 10.0The 1st 13th Annual Fancy Anvil Awards Show Program Special: Live in Stereo
Muriel Bain (voice) · 2002
Across film & television
Filmography (8)
Showing 8 of 8 credits
Courage the Cowardly Dog
Muriel Bagge (voice)
1999Straight Outta Nowhere: Scooby-Doo! Meets Courage the Cowardly Dog
Muriel Bagge / Rich Old Lady (voice)
2025Cartoon Network Christmas: Yuletide Follies
Muriel Bagge
2004Cartoon Network Christmas: Yuletide Follies
Muriel Bagge (Voice)
2004The 1st 13th Annual Fancy Anvil Awards Show Program Special: Live in Stereo
Muriel Bain (voice)
2002
The Fog of Courage
Muriel Bagge
2014
Cartoon Network: Christmas Rocks
Muriel Bagge (voice)
2005
Scooby-Doo/Courage the Cowardly Dog Scare-A-Thon
Muriel Bagge (voice)
2000