Original: Scott Stewart Bakula ( ; born October 9 , 1954 ) is an American actor , known for his role as Sam Beckett in the television series Quantum Leap , for which he won the Golden Globe Award for Best Actor â '' Television Series Drama in 1991 and was nominated for four Emmy Awards .
Simplified: Scott Bakula ( October 9 , 1954 ) is an American actor . He is best known for his roles on the television shows , Quantum Leap and Star Trek : Enterprise .