Cosima's data has been wiped. It's a coup.

Sarah

Cosima: Why are you doing this?
Evie: I never understood what Susan saw in that face. In the decades of watching your tedious lives. While technology just passed her by. Clones are obsolete.

Da Vinci robbed graves to study anatomy. In a hundred years, they'll call me a pioneer.

Evie

No tears, Cosima. These shites aren't worth the salt. Tell Siobhan she's done right. Always. And tell your sisters I'm proud to have been part of them all. Turn around, luv. Turn around. Good girl.

Kendall

Delphine Cormier was shot dead at the Dyad parkade. Tell Susan the original is dead. Tell Sarah it's over. Or Beth died for nothing.

Evie

Neolution will cauterize your life. Allison, Cosima, your parents, Paul. You wanna save the people you love? Use that gun on yourself.

Evie [to Beth]

They always do this.

Kira [to Adele]

Oh my god! I'm late. I'm late for my own pregnancy.

Krystal

Kira [about the phallus painting]: Is that a rocket-ship?
Felix: You can call it that. I've met men who do.

Alison: The plans have changed. Cosima is now carrying your child, Donnie.
Donnie: Oh. OK. So, wait, is she going to be co-parenting this child with Julian and I, or is she just going to be carrying the baby... ?
Alison: Donnie, the baby is fake. It doesn't matter.

Alison: Really? Are you feeling up to it?
Cosima: Put me in, coach. I'm ready.

Donnie: Listen to me! There's another clone here.
Cosima: What? Who?
Donnie: Big blonde hair, perfect nails, voice like a can opener.
Cosima: Krystal Goderitch?

Orphan Black Season 4 Quotes

OK, well, that's cheeky. Cause of death? Have to go with... exploding cigar.

Janis Beckwith

M.K.: Follow the coordinates.
Beth: What?
M.K.: Remember, don't trust anyone next to you.