Currently available on 2 streaming services.

Streaming, rent, or buy ER – Season 4:

Currently you are able to watch "ER - Season 4" streaming on Strim, Max.

Cast

Maura Tierney
Abby Lockhart
Parminder Nagra
Neela Rasgotra
Linda Cardellini
Samantha Taggart
Scott Grimes
Archie Morris
David Lyons
Simon Brenner
Angela Bassett
Catherine Banfield
John Stamos
Tony Gates