had no idea

The good alien was played by Jay Bilas (guy all over ESPN).

I'm not really a big college basketball fan so not surprising I wouldn't have made the connection.

There were some tall dudes on that set

Hues- 6'5"
Bilas- listed at 6'8" here on IMDB

and of course our hero Mr Lundgren- probably 6'5" in 1990