Dean has starred in short-lived television series like Spencer (1984), Fast Times (1986, a spinoff of the 1982 film Fast Times at Ridgemont High), They Came from Outer Space (1990), and Mister Sterling (2003). He made guest appearances on many TV series, including The Facts of Life, ALF, My Sister Sam, Will & Grace, ER, Felicity, and Psych.

Since late 1999, has worked as voiceover talent for radio and television commercials and animated series like The Regular Show and We Bare Bears.

Cameron co-wrote the 2001 feature film Hollywood Palms, wrote and directed a short film, "Glutton Falls" and directed/choreographed "Bukowsical", a late night musical theater parody at the Sacred Fools Theater Company in Los Angeles, California. Cameron directed the videos "Fat Girl" and "Pussy Whipped" for heavy metal band Steel Panther as well as co-wrote the song "Girl From Oklahoma" on their 2009 debut album Feel the Steel and "Supersonic Sex Machine" on their 2011 follow-up album Balls Out. Cameron also co-wrote and directed a presentation pilot for Steel Panther.

In 2003 Cameron played bass guitar for a LA local band called The Thornbirds (formerly called The Ducks). Cameron co-wrote the songs, Girl from Oklahoma and Supersonic Sex Machine' for the band Steel Panther, two of the members later joined The Thornbirds. When that group released All The Same in 2004, both of the songs were on that album. Cameron is also in a karaoke band that parodies actor/musicians, Corey Haim, Corey Feldman and Corey Hart called Coreyoke. Cameron says on his website that "may be the most fun i’ve ever had in my long life." The story line behind Coreyoke is that they are Musicians from the 80's who are trying to revive their careers and play backup for Michael Jackson.

He performs a two-person show The Nigerian Spam Scam Scam, in which he and actor Victor Isaac read from Cameron's 11-month correspondence with a Nigerian 419 scammer. The show was performed at the Edinburgh Fringe Comedy Festival in 2004 and 2005, the Just For Laughs festival and the Upright Citizens Brigade theater in 2006 and ran in Los Angeles from September 2004 to December 2004. The first professional show was at The Amaz!ng Meeting, TAM2 for the James Randi Educational Foundation in 2004.

Cameron was one of the camera operators during the filming of the 2005 film The Aristocrats. During the 2005 Edinburgh Fringe Festival, he and Comedian Paul Provenza shot a live version of The Aristocrats. The intent was to release it on the Special Features of the DVD. Cameron explained to actor Samm Levine in an interview, "We ended up naked and had props like mayonnaise, mustard and ketchup... applejuice... puppets... ". Because they were shooting late at night in a Scottish pub, no one had releases with them, one of the actors refused to sign the form afterwards and the film was never released.

In 2006, he originated the role of Carl in Love Tapes, a play based on videotapes sent by a fan to Guitarist Steve Vai. Love Tapes was written by Steven Banks and Penn Jillette and directed by Cameron's wife, Jessie Marion.

Cameron is married to Jessie Marion, granddaughter of Actress Elena Verdugo, and lives in Los Angeles. Their son, Duncan, was born in August 2009. Cameron rarely uses capital letters. Cameron grew up without religion, and was a teen before he realized that "there was a thing called atheism". He credits his father with teaching him and his siblings to think critically.