The "Versatile" Wynn Pearce
I DVR METV's daily airing of 2 episodes of Perry Mason, one in the a.m., the other late at night. They're on different chronological tracks, so in the TCOT Loquacious Lover from the '60 season, Wynn Pearce played Mason's client, the defendant. SPOILER AHEAD-- In the recorded episode from 1963 I watched back-to-back, Pearce's character was the murderer. The producers must have enjoyed his drunken scene in the 1960 episode because he had another in 1963.
Pearce had a pleasant, youthful presence, like a Jim Hutton:
http://www.perrymasontvseries.com/database/picture5.php?episode=72