Manfred Erdmann was a German voice actor known for his extensive work in dubbing international films and television series, particularly in the realm of animation and anime. Born on December 29, 1939, he was active in the dubbing industry from the 1970s until his death on October 26, 2017. He was recognized for his distinctive, raspy, or raw and dark vocal quality, which made him a frequent choice for gruff, menacing, or eccentric characters.

The search results confirm Erdmann's role as Ramrod in the series Saber Rider and the Star Sheriffs. However, the specific roles of Big Pan in One Piece Special – Adventure of Nebulandia, Sir Arthur Hellsing in Hellsing Ultimate, Almyce in The Slayers Try, Meister Karwess in Rune Soldier, Seizaemon in Pom Poko, Goru in Nausicaä of the Valley of the Wind, and Big Joe in Jeanie with the Light Brown Hair are not documented in the available information. Notably, his most prominent role in the One Piece franchise was providing the German voice for the character Whitebeard.

Beyond the specific roles listed, Erdmann had a prolific career with several major recurring voice credits. He was the regular German voice of Mr. T in the television series The A-Team. In animation, he is best known as the German voice of Dr. John Zoidberg on Futurama and the Comic Book Guy on The Simpsons. He also voiced characters in several Asterix films, Megatron in the Transformers series, and Red Skull and Kraven in the 1990s Spider-Man series. In the video game medium, he was the narrator in the Trine series and provided voices for games such as Age of Mythology and StarCraft.