Allison Miller has become the second actor after Jason O’Mara cast in Fox’s upcoming adventure series Terra Nova. The project, produced by Steven Spielberg and Peter Chernin, follows an ordinary family from 2149 led by Jim Shannon (O’Mara) who are transported back 85 million years to prehistoric Earth where they join Terra Nova, a colony of humans with a second chance to build a civilization. Miller will play Skye.

Terra Nova was originally announced at the upfronts as a midseason replacement, but has been pushed to fall 2011 with a May preview to give more time for the elaborate production and post-production. The series is produced by 20th Century Fox TV, DreamWorks TV, Kapital Entertainment and Chernin Entertainment. Miller, who recently starred on NBC’s Kings and in the feature 17 Again, is repped by ICM and Thruline.