Arken (Scaredy Cat)
From Tardis Wiki, the free Doctor Who reference
Arken was a scientist on a trip to Endarra, who performed tests on the primitives. He later questioned the Eighth Doctor about the nature of evil; he wanted to understand evil because his son was murdered.. He vivisected Eunis Flood. He accidentally melded Flood's mind with a morphological field of the planet. (AUDIO: Scaredy Cat)