CSI: NY

Both Justin Bruening and Robbie Amell will play key roles on new shows this fall. First, though, they will stop by a long-running CBS hit.

The actors will guest star on the October 21 episode of CSI: NY.

Bruening, set to recur on The CW's Ringer, will portray an ex-con who gets caught up in a murder investigation. Amell, a player on ABC's upcoming Revenge, will play that character's younger brother.

CSI: NY returns with new episodes on September 23.