A man uses a toxin to target specific groups of people. Walter finds out that the toxin was created by his father in Berlin, long before DNA was even discovered.
Episode rating
Cast of episode
86
7
5
1
- Dr. Walter Bishop
- Peter Bishop
- Olivia Dunham
- Astrid Farnsworth
- Phillip Broyles
- Nina Sharp
- Alfred Hoffman
- Edward Markham
- George
- Amanda
- Nora
- Homeless Man with Dog
- Josh Staller
- Lynn Arrendt
- Cashier
- Nana Staller
- Detective Manning
- Shelley
- Eliza Staller
- Young Mother
- Neal
- Security Guard
- Jordan
- Speaker
- Jenna
- Harry Staller
- Officer
- Eric Franko
- Agent Doble
- David Staller