. "Humanoid"@en . . . "A female Dreilyn named Olla was very briefly a companion of the Seventh Doctor. While the Doctor recognised her species on sight, Frobisher had not heard of them. (COMIC: A Cold Day in Hell!, Redemption!)"@en . . "Dreilyn"@en . . "Dreilyn"@en . "A Cold Day in Hell!"@en . "A female Dreilyn named Olla was very briefly a companion of the Seventh Doctor. While the Doctor recognised her species on sight, Frobisher had not heard of them. (COMIC: A Cold Day in Hell!, Redemption!)"@en . .