Robbins provided Charlie Brown's voice in several Peanuts television specials and film from 1965 to 1969. These include the film A Boy Named Charlie Brown and television specials A Charlie Brown Christmas and It's the Great Pumpkin, Charlie Brown.

While Robbins was replaced by other child actors in the Peanuts specials produced after 1969, his trademark scream of "AAUGGGHH!!", first used in It's the Great Pumpkin, Charlie Brown, continued to be used in the later specials for Charlie Brown and other characters.

He appeared in an episode of F Troop in 1966 entitled "The Sergeant And The Kid". He also appeared in an episode of Get Smart as the mysterious Dr. T.

Robbins hosted a talk radio show in Palm Springs at KPSL 1010 Talk Radio in 1996. In 2006, according to a broadcast by National Public Radio, Peter Robbins managed real estate in Van Nuys, California. Robbins visited the San Diego Comic-con in 2008.

On January 20, 2013, Robbins was arrested by San Diego County Sheriff's Department deputies at San Ysidro Port of Entry in California, while re-entering the United States, and charged with "four felony counts of making a threat to cause death or great bodily injury and one felony count of stalking...." He was held on a bond of $550,000. On May 8, 2013, Robbins was sentenced to a year in jail for threatening his former girlfriend and stalking her plastic surgeon, but he will be allowed to log time in treatment instead. After release, he was sent to a residential drug treatment center.

Grammy Awards

1980 Nominated

Grammy Best Recording for Children

You're in Love, Charlie Brown (1967)

Shared with:

Sally Dryer (performed by)

Gail DeFaria (performed by)

Ann Altieri (performed by)

Glenn Mendelson (performed by)

Lisa DeFaria (performed by)

Kathy Steinberg (performed by)

Bill Melendez (performed by)

1979 Nominated

Grammy Best Recording for Children

Charlie Brown's All Stars! (1966)

Shared with:

Vince Guaraldi (composed and produced by)

Bill Melendez (performed and produced by)

Sally Dryer (performed by)

Christopher Shea (performed by)

Kathy Steinberg (performed by)

Ann Altieri (performed by)

Glenn Mendelson (performed by)

Lynn Vanderlip (performed by)

Gail DeFaria (performed by)

Geoffrey Ornstein (performed by)

Karen Mendelson (performed by)

1978 Nominated

Grammy Best Recording for Children

A Charlie Brown Christmas (1965)

Shared with:

Vince Guaraldi (composed and produced by)

Bill Melendez (performed and produced by)

Christopher Shea (performed by)

Tracy Stratford (performed by)

Kathy Steinberg (performed by)

The Vince Guaraldi Trio (performed by)

Chris Doran (performed by)

Karen Mendelson (performed by)

Geoffrey Ornstein (performed by)

1971 Nominated

Grammy Best Recording for Children

A Boy Named Charlie Brown (1969)

Shared with:

Vince Guaraldi (composed and produced by)

Bill Melendez (composed, produced, and performed by)

Rod McKuen (music and lyrics by)

John Scott Trotter (music and lyrics by - "I Before E")

Alan Shean (composed by)

Pamelyn Ferdin (performed by)

Glenn Gilger (performed by)

Andy Pforsich (performed by)

Ann Altieri (performed by)