Oswald Klaven — I Love You, Man Character Profile

About Oswald Klaven

Peter's father who is included in the informal group of groomsmen assembled for the wedding alongside Robbie and Lou Ferrigno.

Character Facts

Played by

J.K. Simmons

Appears in

I Love You, Man (2009)

Role

Supporting

More characters from I Love You, Man

• Peter Klaven (Paul Rudd)
• Sydney Fife (Jason Segel)
• Zooey Rice (Rashida Jones)
• Robbie Klaven (Andy Samberg)
• Hailey (Sarah Burns)
• Female Co-Worker (Kym Whitley)
• Barry (Jon Favreau)
• Female Co-Worker (Colleen Crabtree)
• Lou Ferrigno (Lou Ferrigno)
• Leanne (Jean Villepique)
• Hailey's Date (Greg Levine)
• Joyce Klaven (Jane Curtin)