Donny frequently becomes desperate as he deals with the ever-persistent Martha and his own, inner demons.

Darrien is the sinister force behind Donny's mental break.

Martha stalks Donny by sitting at the bus stop directly across from his home.

Martha frequents the bar in which Donny works, eventually leading to tense and uncomfortable moments.

Trans woman and Donny's love interest, Teri unwillingly gets caught up in Martha and Donny's feud.

Martha, spectacularly played by Jessica Gunning, is Donny Dunn's stalker throughout the series.

Donny Dunn is the titular protagonist of Baby Reindeer.

Shalom Brune-Franklin plays Keeley, Donny's love interest early in the limited series.

One of Donny's many attempts at becoming a stand-up comedian.