Chris Hemsworth (The Cache) and Clifton Collins Jr. (The Perfect Game) have joined the cast of Paramount Pictures and J.J. Abrams' Star Trek, according to Variety.

Hemsworth will play Captain Kirk's father, George Kirk. Collins will play Ayel, the cohort and general to Nero, played by Eric Bana.

The duo joins the previously cast Zachary Quinto, Chris Pine, Simon Pegg, Karl Urban, Bana and Winona Ryder.

Filming began last week. Alex Kurtzman and Roberto Orci wrote the script about the Starfleet Academy days of the crew of the Starship Enterprise.

Star Trek was released May 8th, 2009 and stars Chris Pine, Zachary Quinto, Leonard Nimoy, Eric Bana, Bruce Greenwood, Karl Urban, Zoe Saldana, Simon Pegg. The film is directed by J.J. Abrams.